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Many influential factors of this method were analyzed. The experimental results indicated: the mole ratio of urea, sodium hypochiorite and sodium hydroxide was controlled within the range of (1.10~1.12):1:(2.30~2.42), the temperature of low temperature reaction must be controlled under 20℃, the high temperature should intensify fast to backset current temperature while reacting and the time for raising temperature only within 5min, and the yield of hydrazine hydrate can be reach about 75.1%.

实验分析了尿素法生产水合肼的各种影响因素，实验表明，尿素、次氯酸钠与氢氧化钠的摩尔比为(1.10~1.12)：1：(2.30~2.42)，低温反应温度控制在20℃以下，高温反应阶段快速升温至回流后反应5min左右时，水合肼收率可达75.1%左右。

Meantime, amines" structure influence on the yield of Schiff base was discussed , and some new compounds" bacteriostasis was tested in this paper.

通过实验本论文同时讨论了胺的结构对Schiff碱合成反应的影响，试验了一些化合物的生物活性。

To contrive the improvement in yield and reliability of a BGA type semiconductor device having ball-shaped conductive terminals.

本发明提供提高具有球状导电端子的BGA型半导体器件成品率和可靠性的制造方法。

The yield and invertase activity and con tent of total soluble sugar was marked or bally marked.

转化酶活性和总可溶性糖含量与产量相关性达到显著或极显著。

Effect of Cu, Mo and Si fertilizers on balsam pear yield and quality were studied in two different textural soils.

通过田间试验，比较研究了在细砂土和粉壤土两种质地的土壤上，Cu、Mo、Si营养对苦瓜产量和品质的影响。

In fact,'the stock market has been such a consistent generator of cash flow, it's become a yield engine that's quite similar to the bond market,' says Dean Curnutt, head of equity derivative and convertible sales at Banc of America Securities.

美银证券股票衍生产品和可转换产品销售部的负责人迪安科纳特说，事实上，股票市场已经成了一台持续创造现金流的机器，它已变成了一部与债市十分类似的收益率引擎。

In chapter three, the activating agents of ytterbium have been examined. Barbier-type reaction promoted by ytterbium metal was examined. The experimental results shown that the yield of Barbier reaction of imines with allylic bromide promoted by ytterbium is higher than that of aldehydes and ketones with allylic bromide under the same reaction conditions. In this chapter, the reductive cleavage of Se-Se and S-S bond induced by ytterbium metal was also studied.

首先研究了金属镱的活化剂以及活化方法，接着考察了金属镱促进的Barbier反应及其在合成高烯丙基胺和高烯丙基醇中的应用，以及影响该反应的主要因素；究了金属镱促进的二硫醚和二硒醚的S—S键和Se—Se键的还原断裂，继而与氯代烃，胺基甲酰氯反应生成相应的硫醚，硒醚，胺基甲酸硫代酯和硒代酯。

objective to optimize the content and feeding strategy of barbital sodium during the fermentation of rifamycin b in order to improve the yield.

目的优化利福霉素发酵摇瓶中巴比妥钠的添加量及添加策略，以提高发酵产量。

This battle will be fought nationwide. In Florida, for example, the party pooh-bahs back Charlie Crist, the governor, for a soon-to-be-vacant Senate seat. Mr Crist could probably win a general election. But conservatives despise his free-spending, Barack Obama-embracing ways, and would rather gamble on Marco Rubio, a young Cuban-American who hits all their sweet spots. The National Republican Senatorial Committee has recruited an impressive batch of moderates to contest winnable seats, such as Mark Kirk in Illinois and Michael Castle in Delaware. But all are likely to face bare-knuckle conservative challengers. Vicious primaries may yield either unelectable extremists or moderates who have been wounded by attack ads and drained of money. And the party is too ill-disciplined to prevent any of this from happening. In short, the Republicans are doomed.

这场战争会在全国范围内打响，比如，在佛罗里达州，党内要人支持Charlie Crist州长去争取将要腾出来的参议院的位子，Crist先生一般来说会赢得选举，但是保守派鄙视他如同奥巴马所做的那样乱花钱，保守派宁可把赌注压在Marco Rubio这位年轻的古巴裔美国人身上，他正好处于最佳位置全国共和党参议院委员会已经招募了一群给人深刻印象的温和派，比如伊利诺伊州州的Mark Kirk和特拉华州的Michael Castle去竞争可能获胜的位子，但是他们所有人都需要去面对毫不留情的保守派挑战者，残酷的初期阶段会产生没有参选资格的极端主义者或者温和派，他们会因攻击性的广告或者钱财耗尽而受伤，并且共和党毫无纪律去防止此类事情的发生，一句话，共和党前景黯淡。

The results show that the appropriate conditions of castor oil with barium hydroxide as catalyst in transesterification reaction are: the molar ratio of methanol to oil is 6:1, castor oil to catalyst is 10:1, reaction time 90 min, the yield is 98.20%, the castor oil conversion rate is 75.13%.

结果表明，蓖麻油在以氢氧化钡为催化剂的酯交换反应中适宜条件为：醇油摩尔比6：1，蓖麻油与催化剂摩尔比10：1，反应时间90 min，生物柴油收率98.20%，蓖麻油转化率为75.13%。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。