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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。

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%。

The protease secreted from cellcould be more stable by adding the Ca2+ to fermentation broth. The cold-adapted protease, stable at 15℃, could be secreted in large quantity by the strainof SYP-A3-2. When the culture temperature was changed from 15℃ to 20℃, the strain grewfaster while the enzyme yield was decreased.

SYP-A3-2菌株在15℃下能大量分泌低温蛋白酶，且能有效保持酶的稳定性，在20℃时能以较快速率生长，但是酶量很少且酶活力不高，可以设计温度控制方案进行分阶段培养以缩短发酵周期。

I needed to know what to feed the flowers and other plants so they would be healthy and yield a bountiful supply of bee , butterfly and bird food .

我需要知道什么饲料的花朵和其他植物，所以他们将健康和产量的一富饶的供应蜜蜂，蝴蝶和鸟类的食物。

The catalytic effects of 16a-e on the asymmetric addition of diethylzinc to benzaldehyde were evaluated, and it was found that they could promote the reaction with up to 63% yield and 27% ee.

研究了化合物16a-e催化二乙基锌对苯甲醛的不对称加成，发现16b-e可以催化该反应的进行，最高产率为63％，ee值27％。

It is prepared from pentachluorobenzonitrile by using KF as fluoride to substitute chlorine in the presence of benzonitrile under high temperature. But owing to the low solubility of KF and rigor synthesis condition, and the parallel auxiliary reactions, the speed of reaction as well as the yield is very low.

五氟苯甲腈的合成开发以五氯苯甲腈为原料在较高的温度下用氟化钾做氟化剂，通过取代苯环上氯原子而得到的，由于氟化钾在溶剂中溶解度低，合成条件要求苛刻，反应速度较慢，同时存在有平行竞争副反应，因而反应收率较低，国内尚无厂家生产。

According to the briefing, currently on the market of real estate trust products issued deadline for the 1-3 majority, it is expected generally in the annualized yield of 4% to 5%, and some even as high as 8%; and bank RMB deposit interest rate for a period of 3 2.52%, 2.25% for the biennium only; 3-year bond interest rate is also only about 2.3 percent.

据介绍，目前市场上的房地产信托产品发行截止日期为1月3日多数，预计一般在年收益率4 ％至5％，有的甚至高达8％；和银行人民币存款利率，任期为3 2.52 ％， 2.25 ％，两年期只有3年期国债利率也只有百分之二点三。

Bighead carp, a fast growing, the age of 3 kg of fish up to 4-5, the largest individual up to 40 kg, the natural high yield.

鳙生长迅速，3龄鱼可达4-5公斤，最大个体可达40公斤，天然产量很高。

The dynamic analysis based classification method in the early stage of development is brought forward in the first time ,which consists of:firstly ,the material balance equation and the binomial production equation is solved together for those wells with stable production., to yield the anticipation under constant production ,and constant THP afterwards; Secondly, the R/S fractal method is used to demonstrate the declining tendency for those withdegressive production, and the GM(1,1) model is adopted for simulation and anticipation.

在此基础上进行了定产量／压力条件下的动态预测；②对产量递减井，采用分形理论中的R／S方法，对气井产量变化作了连续趋势性论证，在此基础上采用GM(1，1)模型对递减气井的生产动态进行快速拟合和预测。

The selective cultivation of super-strains and their fine characteristic exertion are the key to the vinegar brewage industry,and they are important to improving yield and quality of vinegar.

高产菌株的选育及其优良特性的发挥，对酿醋工业尤为关键，是提高食醋产量和品质的一个重要因素。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！