查询词典 timorous and punctilious

With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.

本论文本着科技创新、服务于生产实践的精神，以设计价格低廉，性能优越、结构合理简单的L-band EDFA为目标，依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目，展开了如下工作：首先，介绍了掺铒光纤放大器的工作原理，归纳总结了基于速率方程基础的EDFA的各种理论模型，分析比较了各个模型的特点和适用场合，最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础；针对实际实验条件提出了修正的EDFA模型的数值计算方法；创新地提出了增益—噪声系数全局分析法，直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系，并对各种EDFA的性能作了全面的比较；第二，介绍了掺铒光纤放大器特性参数的定义与测量方法，重点介绍了噪声系数和增益系数的测量方法及实验装置；介绍了组成掺铒光纤放大器各组件的特性测量方法，重点介绍了测量掺铒光纤参数的方法和实验装置；第三，针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求，我们创新地提出了四种不同的L-band EDFA结构，按设计思路可以分为两大类：一类是基于单抽运二级泵浦法，这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构；基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构；基于单根光纤光栅、泵浦分配、两段级联的EDFA；另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法，如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。

Market adhere to the spirit of innovation, outstanding "science, technology and entrepreneurship," the theme to "small stage to sing opera, small room for the operation of" innovative concept, and constantly adjust their thinking, active exploration and practice, in the incubator building, scientific and technological achievements into, technology promotion, personnel training, business counseling, as well as personnel exchanges, and small and medium-sized public areas such as technical services for small and medium enterprises, college students, laid-off workers, rehabilitation to the military services to provide a series of pioneering science and technology intermediary service, especially in the students start their own business services and entrepreneurship training to make its own characteristics and brand and become a high-tech market in the "bright spot" and give full play to science and technology intermediary service platform and business services the role of demonstration bases.

市场坚持创新精神，突出&科技与创业&这一主题，以&小舞台唱大戏，小空间大运作&的创新理念，不断调整思路，积极探索实践，在孵化器建设、科技成果转化、技术推广、人才培训、创业辅导以及人才交流、中小企业公共技术服务等方面为中小企业、大学生、下岗职工、复转军人提供了一系列创业服务和科技中介服务，尤其在大学生创业服务及创业培训方面做出了自己的特色和品牌，并成为科技市场的&亮点工程&，充分发挥了科技中介服务平台及创业服务示范基地的作用。

Men, at first, for the most part, contented themselves with what unassisted nature offered to their necessities: and though afterwards, in some parts of the world,(where the increase of people and stock, with the use of money, had made land scarce, and so of some value) the several communities settled the bounds of their distinct territories, and by laws within themselves regulated the properties of the private men of their society, and so, by compact and agreement, settled the property which labour and industry began; and the leagues that have been made between several states and kingdoms, either expressly or tacitly disowning all claim and right to the land in the others possession, have, by common consent, given up their pretences to their natural common right, which originally they had to those countries, and so have, by positive agreement, settled a property amongst themselves, in distinct parts and parcels of the earth; yet there are still great tracts of ground to be found, which (the inhabitants thereof not having joined with the rest of mankind, in the consent of the use of their common money) lie waste, and are more than the people who dwell on it do, or can make use of, and so still lie in common; tho' this can scarce happen amongst that part of mankind that have consented to the use of money.

最初，就绝大部分人而言，满足于自然直接提供给他们的生活必需品；然而后来，世界某些部分的种群，（在那里，人口和储蓄的增长，并随着货币的使用，使土地变得不足，因而有了一些价值）多个社群之间确定了他们各自的领土边界，并在社群内部通过法律管理他们社会的私人财产权，于是通过契约和协议，确定由劳动创造的财产权；多个国家和王国之间则订立盟约，以明确表达或默认的形式否认了彼此之间的土地要求和权利，从而，基于共同的同意，放弃了他们原初对于别的国家所拥有的自然的共有权利的要求，于是，通过肯定性的协议，确定他们之间的财产权，在地球上形成各个不同的国家；然而还有大片土地被发现，（那里的居民并未与其余的人类通过使用共同的货币而融合在一起）这些土地处于荒芜状态，多于那里的居民所能够使用，因而仍处于共有状态；不过这种情形很少发生在那些同意使用货币的人群之中。

He bid me observe it, and I should always find, that the Calamitles of Life were shared among the upper and lower Part of Mankind; but that the middle Station had the fewest Disasters, and was not exposd to so many Vicisitudes as the higher or lower Part of Mankind; nay, they were not subjected to so many Distempers and Uneasiness either of Body or Mind, as those were who, by vicious Living, Luxury and Extravagancies on one Hand, or by hard Labour, Want of Necessaries, and mean or insufficient Diet on the other Hand, bring Distempers upon themselves by the natural Consequences of their Way of Living; That the middle Station of Life was calculated for, all kind of Vertues and all kinds of Enjoyments; that Peace and Plenty were the Hand-maids of a middle Fortune; that Temperance, Moderation, Quietness, Health, Society, all agreeable Diversions, and all desirable Pleasures, were the Blessings attending the middle Station of Life; that this Way Men went silently and smoothly thro the World, and comfortably out of it, not embarassd with the Labours of the Hands or of the Head, not sold to the Life of Slavery for daily Bread, or harrast with perplexd Circumstances, which rob the Soul of Peace, and the Body of Rest; not enragd with the Passion of Envy, or secret burning Lust of Ambition for great things; but in easy Circumstances sliding gently thro the World, and sensibly tasting the Sweets of living, without the bitter, feeling that they are happy, and learning by every Days Experience to know it more sensibly.

他说，我自己可以从下面的事实中认识到，中间地位的生活确实幸福无比；这就是，人人羡慕这种地位，许多帝王都感叹其高贵的出身给他们带来的不幸后果，恨不得自己出生于贫贱与高贵之间的中间阶层。明智的人也证明，中间阶层的人能获得真正的幸福。《圣经》中的智者也曾祈祷：&使我既不贫穷，也不富裕。&他提醒我，只要用心观察，就会发现上层社会和下层社会的人都多灾多难，唯中间阶层灾祸最少。中间阶层的生活，不会像上层社会和下层社会的人那样盛衰荣辱，瞬息万变。而且，中间地位不会像阔佬那样因挥霍无度、腐化堕落而弄得身心俱病；也不会像穷人那样因终日操劳、缺吃少穿而搞得憔悴不堪。唯有中间地位的人可享尽人间的幸福和安乐。中等人常年过着安定富足的生活。适可而止，中庸克己，健康安宁，交友娱乐，以及生活中的种种乐趣，都是中等人的福份。这种生活方式，使人平静安乐，怡然自得地过完一辈子，不受劳心劳力之苦。他们既不必为每日生计劳作，或为窘境所迫，以至伤身烦神；也不会因妒火攻心，或利欲薰心而狂躁不安。中间阶层的人可以平静地度过一生，尽情地体味人生的甜美，没有任何艰难困苦；他们感到幸福，并随着时日的过去，越来越深刻地体会到这种幸福。

He bid me observe it, and I should always find, that the Calamitles of Life were shared among the upper and lower Part of Mankind; but that the middle Station had the fewest Disasters, and was not expos'd to so many Vicisitudes as the higher or lower Part of Mankind; nay, they were not subjected to so many Distempers and Uneasiness either of Body or Mind, as those were who, by vicious Living, Luxury and Extravagancies on one Hand, or by hard Labour, Want of Necessaries, and mean or insufficient Diet on the other Hand, bring Distempers upon themselves by the natural Consequences of their Way of Living; That the middle Station of Life was calculated for, all kind of Vertues and all kinds of Enjoyments; that Peace and Plenty were the Hand-maids of a middle Fortune; that Temperance, Moderation, Quietness, Health, Society, all agreeable Diversions, and all desirable Pleasures, were the Blessings attending the middle Station of Life; that this Way Men went silently and smoothly thro' the World, and comfortably out of it, not embarass'd with the Labours of the Hands or of the Head, not sold to the Life of Slavery for daily Bread, or harrast with perplex'd Circumstances, which rob the Soul of Peace, and the Body of Rest; not enrag'd with the Passion of Envy, or secret burning Lust of Ambition for great things; but in easy Circumstances sliding gently thro' the World, and sensibly tasting the Sweets of living, without the bitter, feeling that they are happy, and learning by every Day's Experience to know it more sensibly.

他提醒我，只要用心观察，就会发现上层社会和下层社会的人都多灾多难，唯中间阶层灾祸最少。中间阶层的生活，不会像上层社会和下层社会的人那样盛衰荣辱，瞬息万变。而且，中间地位不会像阔佬那样因挥霍无度、腐化堕落而弄得身心俱病；也不会像穷人那样因终日操劳、缺吃少穿而搞得憔悴不堪。唯有中间地位的人可享尽人间的幸福和安乐。中等人常年过着安定富足的生活。适可而止，中庸克己，健康安宁，交友娱乐，以及生活中的种种乐趣，都是中等人的福份。这种生活方式，使人平静安乐，怡然自得地过完一辈子，不受劳心劳力之苦。他们既不必为每日生计劳作，或为窘境所迫，以至伤身烦神；也不会因妒火攻心，或利欲薰心而狂躁不安。中间阶层的人可以平静地度过一生，尽情地体味人生的甜美，没有任何艰难困苦；他们感到幸福，并随着时日的过去，越来越深刻地体会到这种幸福。

The special features of this plan are its interdisciplinary (anthropological, historical, and literary) combination of methods and visions and its broad use of artifacts, documents (investigative reports, local gazettes, travel writings, and even novels and plays), and visual images in presenting and expounding upon the elements of "people and locality"(people and their relationship with their environmental ecology),"people and people"(the various social identities and distinctions between peoples), and "people and heaven"(the life customs and religious beliefs of humankind) associated with these archived items.

本计划之特色在於结合跨学科方法与视野，广泛运用各种文物、文书（调查报告、方志游记、乃至小说、戏曲等材料）与图像资料，来诠释与呈现这些材料背后的「人与地」、「人与人」(人群间各种社会认同、区分)、「人与天」（人类之生命礼俗与宗教信仰）等情境，同时呈现中国族群研究的多元论述与探讨中国民族形成的历史过程。

ABSTRACT It is because that the excellent acceptors for maize transgenic engineering are insufficient in our country, especially in the southwest mountain areas of china and hereditary variation regularity for the two characters such as efficiency of embryonic callus induction and number of regenerating plant (these two characters were abbreviated to the nduction efficiency and number of regenerating in the following of the paper, respectively), which hint the maize culturing capacity, is not very clear. Therefore, aiming at picking out superior acceptors, we had made systematic researches on the two characters with combing traditional quantitative-character genetic analyzing methods such as single-factor genetic mating design, diallel crossing genetic design, genetic effect analyzing method and the modern molecular locating method such as QTLs'. The main results are followed.(1) 50 superior inbred lines and about 30 crosses in our country, especially in the southwest of China were used for identifying and selecting the superior genotypes in the above two investigated characters under the same culturing condition in 2000 and 2001. There was very significant difference among the genotypes in the both characters. But the two characters were not certainly related. Some genotypes such as 18-599 and 18-599 were very good in them. For some ones such as zong 31, induction was higher than 18-599 and 18-599 in the efficiency, but it was only 1/3 to the later in regenerating number. In some genotypes such as S37, R08, R15, P138, A318, induction efficiency was just about 3% and scarcely any regenerating plants were got. On the whole, hybrids acted better than inbreeds in the both characters.(2) Two kind of inbreeds were selected as parents of the Griffing's method 1. 18-599 and 18-599 and the inbred line zong 31 are one kind because they are not only superior in the characters of maize cross breeding, such as CA, resistance to disease and the important agricultural characters, but also excellent in transformation characters as the induction and regeneration.

针对我国、特别是西南山地所需玉米转基因工程育种优良受体极为匮乏和反应玉米幼胚培养能力的2个主要性状，即玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数的遗传变异规律十分不清楚的实际情况，本研究从筛选玉米转基因工程所需要的优良受体入手，采用单因素遗传交配设计、双列杂交遗传交配设计、世代基因效应等传统数量性状分析方法，以及现代分子标记定位主效QTL分析方法，对玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个性状进行了较为系统的分析研究，取得以下主要研究结果：(1)于2000年和2001年通过对我国、特别是西南地区近50份优良自交系和近30个杂交组合，在相同培养条件下，对幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个幼胚培养能力性状进行了筛选与鉴定，发现玉米不同基因型具有完全不同的幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数，但幼胚培养胚性愈伤组织诱导率与胚性愈伤组织绿苗发生数并不具有必然的相关关系，有的基因型，如自交系18-599和18-599在胚性愈伤组织诱导率和愈伤组织绿苗发生数等2个性状都表现相当优异；有的基因型，如自交系综31，仅幼胚培养胚性愈伤组织诱导率性状表现高于19-599和18-599，但在胚性愈伤组织绿苗发生数这一性状则与它们有相当大的差距，仅为19-599和18-599的1/3左右；有的基因型，如S37、R08、R15、P138、A318等玉米自交系不仅幼胚培养胚性愈伤组织诱导率很低，平均仅在3％左右，而且胚性愈伤组织绿苗发生数表现也很差，基本上没有分化成苗。

But when we see a lot of framed timbers, different portions of which we know have been gotten out at different times and places and by different workmen,--Stephen, Franklin, Roger, and James, for instance,--and when we see these timbers joined together, and see they exactly make the frame of a house or a mill, all the tenons and mortices exactly fitting, and all the lengths and proportions of the different pieces exactly adapted to their respective places, and not a piece too many or too few, not omitting even scaffolding--or, if a single piece be lacking, we see the place in the frame exactly fitted and prepared to yet bring such piece in--in such a case we find it impossible not to believe that Stephen and Franklin and Roger and James all understood one another from the beginning, and all worked upon a common plan or draft drawn up before the first blow was struck....

然而，当我们看到这许多木料组成的构架，它们不同的部件在不同的时间和地点由不同的工匠所造出──斯蒂芬、弗兰克林、罗杰和詹姆斯等等──当我们看到这些木料拼在一起，看到它们天衣无缝地组成了一座房子或一间工作坊的构架，所有的掉头和榫眼密切结合，一切构件的长度和大小都使其精确地各归其位，一块也不多，一块也不少，甚至也没忘了搭置脚手架──或者说如果构件少了一块的话，构架上也留下了一处空位来补其所缺──在这种情况下，我们觉得不可能不相信斯蒂芬、弗兰克林、罗杰和詹姆斯从一开头就心照不宣，共同制定出一个计划或方案，然后打出第一拳

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

The paper also points out that, modern logistics can restructure and upgrade the regional industries by means of the effect of industrial relevancy when it serves for the social production and residents living, engenders new industries and enhances the internal proportions of the third industry. By integrating related functional operations, modern logistics is able to change the links between the knots and lines from random and loose connection to a kind of spatial structure of smoothness and steadiness, with which block and friction would be lessened and the function of regional economic constituents amplified while the regional income and the strength would be improved as a whole. Through intensifying the advantage of allocation of the centers of region, modern logistics induces regional elements of development to move towards advantageous locations while bringing key urban cities effects of scale economy and agglomeration economy, it then can be regarded as an operational platform for potentiating the growing polar of urban cities and boosting up the developing level of hinterlands, and an effective measure to balance urban and rural development and development among regions.

论文认为，现代物流在为社会生产和生活服务、形成新的产业形态、改善第三产业内部比例关系的同时，通过产业关联带动效应促进区域整体产业结构的优化升级；现代物流通过整合相关功能性活动，将经济网络中节点与线路之间随机连接、松散联系转变为顺畅交流、稳定合作的空间构造，从而减少区域经济运行中的阻滞性因素，放大区域经济发展要素的功能，提高区域经济系统整体效益和经济实力；现代物流通过强化经济中心的区位优势，促进区域经济发展要素向优区位运动，给经济中心城市带来规模效应、聚集效应和扩散效应，是强化中心城市增长极地位和提升经济腹地发展水平的操作平台，因而也是统筹城乡发展和区域发展的重要手段。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。