查询词典 fraction

It was suggested that aging did not only influence diastolic filling period, but also influence STI. 3. With increasing age, whether at rest or during exercice, fractional shortening of minor semiaxis, mean velocity of circumferential fiber shortening, cardiac index and ejection fraction did not change, but immediately post pacing, PEP prolonged and PEP/ LVET increased in elderly group and did not change in young group. It was suggested that STI was sensitivity in detecting systolic function of LV. 4. There was a good correlation between aging and decreased compliance and diastolic function of left ventricle which was manifested by a reduction of early diastolic peak folw velocity, time-velocity integral of early diastole, 1/3 filling fraction (1/3FF)(r=-0.958,-0.875 and -0.937, P＜0.01～0.001) and a significant compansatory increase in peak flow velocity of atrial contraction, time-velocity integral of atrial contraction, the ratio between APFV and EPFV and the ratio of ATVI and Total TVI (r=0.958, 0.956, 0.966 and 0.986, P＜0.001) and the prolongation of Dec T and RFP with increasing age. It was particularly true for the subgroups above the age of 50 years.

静息状态下收缩时间间期与年龄无相关性，负荷后即刻，老年组射血前期延长(P＜0.05)，射血前期与射血期比值加大(P＜0.05)，青年组无变化，提示年龄因素亦影响STI，但由于静息状态下得到代偿，STI变化往往表现不明显。3、静息及负荷状态左室短轴缩短率、平均周径缩短率、心指数及射血分数均不随年龄增长而变化，而负荷后即刻老年组PEF延长，PEP/LVET加大，提示STI是检测左室收缩功能的敏感指标。4、随年龄增长，心房收缩期充盈峰值流速、流速积分、充盈分数及心房收缩期与舒张早期充盈峰值流速之比值显著增高(r＝0.958、0.956、0.986及0.966，P均＜0.001)，舒张早期充盈峰值流速及流速积分、1/3充盈分数(1/3FF)下降(r＝-0.958、-0.875及-0.937，P＜0.01～0.001)。

BThese two groups of students have no significant differences in their performances on the fraction assortment recognition, unit commutation and simple fraction concept.

2两组学童在分数类别辨识、单位转换及简单分数概念的表现上无显著差异。

For those students who made errors, the type 9 was found to be the most difficult case. Type 2's have shown good results in other concepts. And type 8 students have performed the poorest in the aspect of equivalence fraction, but did better in simple fraction concepts.

对犯每一错误类型的学童而言，类型九之错误类型最困难，犯错误类型二（不了解分数符号平分意义）的学童在其他概念的表现情形良好，另外八个错误类型的学童，在等值分数概念表现最差，简单分数概念表现最好。

There are 26 questions asking teachers to predict the correct percentages of students and they include the concept of equal dividing, simple fraction, unit of quantity and equivalent fraction.

教师预测学生答对率的试题共计26题，包括等分概念、简单分数概念、单位量概念及等值分数概念试题。

Experimental results indicate that there is a critical value of carbon fiber weight fraction which effects the electrical properties of SCF/NBR.When carbon fiber weight fraction comes to this critical value,volume specific electrical resistance and static ...

通过实验发现，碳纤维的含量对短碳纤维／丁腈橡胶（ShortCarbonFiber／NitrileButadieneRubber）电性能的影响，存在一个临界值，当碳纤维的含量达到此临界值时，SCF／NBR的体积比电阻和静电电压都得到显著的降低。

By tracing the antifungal and antibacterial activities of the volatile oils, it is found that the major active site in fiuit oil of Litsea mollis is aldehydic fraction such as citral, the major active site in oil of Thymus quinquecostatus is phenolic fraction such as thymol and the major active site in ginger oil is high boiling-point terpenic constituents such as β-caryophyllene, eudesm-4 (14)-en-11-ol, et al.

通过抗菌活生追踪发现，毛叶木姜子果油的主要活性部位是醛类成分，如柠檬醛；地椒油的主要活性部位为酚类成分，如百里香酚；姜油的主要活性部位为"高沸点萜类组分"，如β-丁香烯、4（14）-桉叶油烯醇-11等。

And they say there is no fate, but there is, it's what you create. And even though the world goes on for eons and eons you are only here for a fraction of a fraction of a second. Most of your time is spent being dead or not yet born. But while alive, you wait in vain wasting years for a phone call or a letter or a look from someone or something to make it all right. And it never comes, or it seems to, but it doesn't really. So you spend your time in vague regret or vaguer hope that something good will come along. Something to make you feel connected. Something to make you feel whole. Something to make you feel loved. And the truth is I feel so angry. And the truth is I feel so fucking sad. And the truth is, I've felt so fucking hurt for so fucking long. And for just as long, I've been pretending I'm okay, just to get along, just for…I don't know why.

大家都说没有所谓的命运，有的只是你所创造的东西，即使世界年复一年的转动，你也只是这一秒钟里极小的一块碎片，你们大部分的时间都留在生后或者生前，但当你们活着的时候，你只是徒劳的等着，浪费几十年去等来自某个人或某件事的一个电话、一封信或一次见面来使自己心安，但那从来都不会或者似乎要发生，但那真的不会发生，所以你再次花时间去茫然的后悔或茫然的希望接下来会遇上好事情，让你感到自己不是与世隔绝的，让你感到自己的存在，让你感到自己是被爱的，而事实是我很生气，而事实是我很伤心，而事实是我觉得我被伤害了很多年了，而同时我还一直假装我自己没事，去适应，去。。。

The type, initial feeding time and concentration of precursor for HV unit formation had great effects on PHBV production in shake flasks. Propionate was selected as the better precursor for HV fraction than valerate after comprehensive survey of these two precursors. The suitable PHBV shaking-flask culture conditions were obtained through the analysis of PHBV fermentation process, the investigation of several factors by using RSA method and the fed-batch experiments. Cell dry weight, PHBV content, PHBV concentration, HV fraction and yield coefficient of HV unit to propionate were 27. 7g/L, 80.7%, 22. 4g/L, 16. 1mol% and 0.50g/g, respectively.

在共聚物PHBV的摇瓶发酵过程中，PHBV中HV组分形成的前体物质的种类、初始加入时间以及加入量是影响PHBV发酵过程的重要因素；在综合比较丙酸和戊酸这两种前体的基础上，选择丙酸作为HV组分合成前体较适宜；通过对PHBV发酵过程曲线分析、影响PHBV发酵指标的各因素的响应面分析以及摇瓶发酵补料试验，得到了较适宜的PHBV摇瓶发酵补料条件，在此条件下，细胞干重、PHBV含量、PHBV浓度、HV组分含量和HV组分对丙酸的产率系数可分别达到27.7g/L、80.7％、22.4g/L、16.1mo1％和

In the paper , we propose two methods of interference excision: Fraction Zeroize and Fraction Clip.

文章的主要工作就是提出了两种干扰消除算法：部分归零法和部分修剪法。

The optimum reaction conditions were as follows: rosin 5 g, m: in: m 1:2:2, palladium chloride 0.090 %, n: n1:10, hydrogen pressure 5 MPa, reaction temperature 160℃ reaction time 3 h, mass fraction of abietic acid could be under 1%, mass fraction of dehydroabietic acid was 5.6%, which conforms to the national standards. The regeneration of catalyst was investigated. After cycling five times, the product of hydrogenated rosin still conforms to the national standards without any treatment of catalyst.

在松香5g、m：m：m1：2：2、氯化钯0.090%、n：nl：10、氢气压力5MPa，反应温度160℃，反应时间3h的较佳工艺条件下，产物氢化松香中极酸的质量分数小于1%，去氢枞酸的质量分数5.6%，符合GB/T 14020-2006国家标准；并对催化剂的重复使用性能进行了考察，催化剂相不经过处理直接重复使用5次后，产品氢化松香仍然符合国家标准中关于枞酸和去氢枞酸的指标要求。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。