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PVA-2080 is one of the important dispersing agents to produce loose polyvinyl chlorid. At present KH-20 is mainly imported from Japan to take the place of the traditional gelatin to produce high quality PVC in our country. In order to solve this problem, we exploit PVA-2080 to replace the foreign products. The experiment includes two steps of polymerization and a process of partial alcohlysis. After a number of trials, we get a product of white particles.Its average degree of alcoholysis is 80.77% and t...

聚乙烯醇- 2 0 80 (PVA - 2 0 80 )是生产疏松型聚氯乙烯的重要分散剂之一目前，国内主要依靠进口日本的KH - 2 0以代替传统的明胶来生产高质量的PVC产品为了解决这一问题，作者开发了PVA - 2 0 80 ，以代替国外进口本试验经过两步聚合和部分醇解等过程，通过正交试验优化试验条件，得到了外观为白色粉末状颗粒、平均聚合度为 2 0 4 2、醇解度为 80 。77%的产品经小釜应用试验，效果比较理想

In order to study the grating diffractive field's characteristics of the partially polarized and coherent beams, an analytic expression of polarization degree and angular correlation of partially ploarized and coherent beams through polarized gratings is derived based on the beam coherentce-polarization matrix approach of partially coherent beams.

为了研究部分偏振部分相干光光栅衍射场的衍射特性，利用部分偏振部分相干光的光束相干-偏振矩阵，推导出了部分偏振部分相干光通过任意偏振光栅后，衍射场的偏振度及场中衍射级次角相关的一般解析表达式。

Researching this problem can" t stay around the comment type research that kind of consider the case as it stands the level the top, and must rise the theories study the high degree, in order to more constitutionally announce to public the business enterprise informationalization"s substance and business enterprise to organize the organization s function and principle.

对这个问题的研究不能停留在那种就事论事的议论型研究水平上，必须上升到理论研究高度，以求更为本质地揭示企业信息化的实质与企业组织机构的作用机理。

On the basis of the 1 degree girded data of the seasonal mean temperature and salinity at standard levels in the South China Sea, mean Brunt-Visl frequency profiles were derived in order to compute numerically the vertical normal-mode for different seasons in various part of the South China Sea, and the associate linearized equation for horizontal large-scale waves is solved numerically with a improved thompson-Haskell algorithm.

根据南海1°×1°网格的标准层季节平均温、盐度资料，在未引入Boussinesq近似条件下，采用改进的Thompson-Haskell算法求解线性化斜压海洋水平大尺度波的垂直结构方程，从而得到了南海各网格点的第一斜压重力波相速度和相应的罗斯贝变形半径，并探讨其地理分布和季节变化特征，以期有助于南海环流和中尺度涡旋以及有关海洋侧边界效应的研究。

In order to have further information about the degree of concrete carbonization influenced by wind pressure and based on the present theories and researches,the experiment with T-type beam concrete carbonisation accelerated by wind pressure was performed.

为了进一步了解外界风压对混凝土碳化的影响程度，在已有理论分析和矩形混凝土梁碳化实验结果的基础上，进行了T型混凝土梁受风影响的碳化试验研究。

More particularly, the invention relates to paper tissue product exhibiting a soft and smooth surface, and a high bulkiness together with a high strength, in order to provide to the user an enhanced functionality and a high degree of comfort during usage.

更具体地讲，本发明涉及显示具有又软又光滑表面和高膨松度及高强度的薄纸制品，以便给使用者提供一种功能更丰富、使用时具有高度舒适感的产品。

First of all, we try to outline the distribution and spread of the Buddhism in Huaihe river valley by the study of the Buddhism temples, josses, sculptures on the cliff; the degree of the development of Buddhism; and the relations between the Buddhism and classes in society. Secondly, in order to know the status and influence of the Buddhism in Huaihe river valley of that time in the history of Chinese Buddhism, we study the communication in Buddhism between Huaihe river valley and other area, and its effect to the development of the Buddhism of the Sui dynasty and the Tang dynasty. Finally, we researched the non-religious social activities of the monks in the fangji jobs and in the war.

首先通过对佛寺、佛像、摩崖等佛教要素的分布，佛教义学发展所达到的高度以及佛教与社会各阶层的关系等的考察，力图对佛教在南北朝时期淮河流域的分布与传播形成一个总体性的认识；其次通过南北朝淮河流域与其它地区在佛教上的交流以及其地佛教与隋唐佛教关系的考察，来认识南北朝淮河流域的佛教在中国佛教史上所占据的地位及其影响；最后通过对僧人从事方技以及与参与战争等本身不具宗教性色彩的社会活动的一些个案考察，来丰富对南北朝淮河流域僧人乃至佛教的认识。

As to verified experiment, this research in addition to explore the subjective evaluation and four items of objective shooting performance (operating posture angle, the degree of muscular activity, stability and accuracy), collect the critical data by extremities angle analyzer, EMG recorder and pressure acquisition analysis system to give human factor performance evaluation simultaneously in order to regard as the reference of the design and measured model construction for follow-up 90 mm pistols.

就实证实验而言，本研究除了探讨主观评比及四项客观射击绩效（射击操作姿势角度、肌肉活动度、稳定性及准确度），并利用肢体角度分析系统、EMG量测仪及压力撷取分析系统等同步搜集数据，进行人因绩效评估，以作为后续90mm手枪设计及量测模式建置之参考。

This paper carried out survey and statistical analysis about Knowledge Worker on the basis of theoretical hypothesis,and found that enterprise knowledge worker s major need factors and its important degree which in proper order is individual maturity,achievement in professional work,working in one s own master and money or wealth.

文章在理论假设的基础上，通过对企业知识型员工的调查与统计分析，得出企业知识型员工的主要需求要素及其重要性程度依次为个人成长、业务成就、工作自主、金钱财富；根据研究结论，提出了企业应重视知识型员工的个体成长和职业生涯发展、协助知识型员工成就动机的实现、营造自主宽松的工作环境等对知识型员工进行管理的建议。

The seed purity of more than one hundred and thirty samples of six maizevarieties was assayed by using the three testing methods: storage proteins electrophoresis,isozyme isoelectric focusing in acrylamide and examination at field plots. Some importantpoints can be concluded from analyses as spearman order rank correlation on the seedpurity data as follows:First, there were deviations of the real performances to those purities obtained from out or in laboratory testing, even from the examination at field plot that is a routine way. Second, the seed globulin and isozyme electrophoresis, both with characteristics of rapid, cost-effective, devoid of environmental effect and speed, showed consistent purity; while the field-testing gave a higher degree of purity on the high side of cost than that in-lab approaches. Third, a good consistent purity was observed in the field plot and seed globulin testing, whereas inconsistency between field-testing and isozyme process. The last point is that seed globulin electrophoresis be a practical method apt to seed purity testing for maize.

并对130多份样品用三种检验方法(盐溶蛋白电泳、同功酶等电聚焦电泳和田间小区)检测的种子纯度数据作排序相关等统计分析，得到如下结果：室内外检测方法都会与种子真实状况有一定差异，田间种植鉴定与真实情况符合性并不一定最好；盐溶蛋白与同功酶等电聚焦这两种方法检测种子纯度所需时间短，成本低，不受外界环境限制，出结果快，二者的结果没有太大差异；田间种植鉴定成本较高，检测的结果普遍偏高；等电聚焦电泳与田间鉴定的一致性年度间存在差异，而盐溶蛋白凝胶电泳法与田间鉴定的一致性较高；种子盐溶蛋白凝胶电泳法较适于鉴定玉米种子纯度。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。