查询词典 in the presence of

A major problem encountered in the animal cell culture bioreactor design and scale-up is that the animal cells are susceptible to damage in the presence of mechanical agitation and/or gas sparging needed to supply sufficient oxygen and mixing to the cultures. Based on the analysis of the cell damage mechanisms, here the principle of the bioreactor design for suspended animal cell cultures has been developed.

动物细胞培养用生物反应器设计和放大的关键问题是细胞破损与供氧和混合的矛盾，在分析细胞破损机理基础上，提出了动物细胞培养生物反应器的设计原理——设计模型和有关设计条件，从而清楚地确立了细胞死亡速度与培养基组成、反应器设计和操作参数间的定量关系，以及反应器设计应遵循的保证细胞生长和满足传质要求的条件。

Epoxide content is determined by dissolving the sample in aqueous acetic acid in the presence of crystal violet, and titrating with HBr to a bluish green endpoint.

环氧化物含量由在结晶紫存在下在含水乙酸中溶解样品测定，然后用HBr滴定至蓝绿终点。

And I saw seven angels standing in the presence of God; and there were given to them seven trumpets.

然后，我看见那站在天主面前的七位天使；给了他们七个号角。

But other things-routine, comfort and familiarity-form, manifested in different ways: the ability to deal with the other's friends and family, adjustments to work schedules, tastes, temperaments and patterns of sleep…breaking the all-telling "bodily function barrier"(when was the last time you let one rip in the presence of your loved one?).

不过却还有些别的——生活规律，舒适感和熟悉感形成了，这些感觉突显在好多地方：形成了跟对方朋友和家人打交道的能力，适应了彼此工作的时间表，品味，脾气，甚至睡觉的样子……他们打破了人们常说的身体功能性障碍。（想想你上次让别人插足在你跟爱人之间是什么时候？这句话没读懂

ZnS photocatalyst was synthesized in the presence of surfactant cetyltrimethyl ammonium bromide.

在表面活性剂十六烷基三甲基溴化铵存在时，合成了ZnS光催化剂。

In the presence of his prince, he looked diffident, awe-inspired, but composed.

孔子在上朝的时候，同下大夫说话，坦率公正；同上大夫说话，自信从容；在国君面前，敬畏而镇定。

The personal baggage of a diplomatic agent shall be exempt from inspection, unless the competent Chinese authorities have serious grounds for presuming that it contains Articles not covered by the exemptions specified in the previous paragraph, or Articles the import or export of which is prohibited by Chinese laws and government regulations or controlled by the quarantine law and regulations Such inspection shall be conducted in the presence of the diplomatic agent or of his authorized representative

外交代表的私人行李免受查验，但中国有关机关有重大理由推定其中装有不属于前款规定免税的物品或者中国法律和政府规定禁止运进、运出或者检疫法规规定管制的物品的，可以查验。查验时，须有外交代表或者其授权人员在场

B in the presence of 当面: The cheques must be signed in front of the cashier at the bank.

必须当著银行出纳员的面签这些支票。

Reaction of L-tyrosine with benzyl bromide in the presence of copper sulfate led to the protection of phenol group on the side chain of L-tyrosine to give H-Tyr-OH in 45% yield via a copper complex intermediate.

酪氨酸与溴化苄在硫酸铜存在下反应，选择性地在其侧链酚羟基上引入苄基保护基，通过反应条件的优化，反应产率达到45%。

L-Phenylalanine was then obtained by alkylation of N- glycine ethyl ester with benzyl bromide in the presence of an asymmetric phase-transfer catalyst-N-benzyl-cinchonine chloride, followed by hydrolysis of the resulting product.

以甘氨酸乙酯盐酸盐和二苯甲酮为起始原料合成了N-二苯亚甲氨基乙酸乙酯，后者在手性相转移催化剂-N-苄基氯化辛可宁诱导下与烷基化试剂溴化苄发生不对称相转移催化烷基化反应，水解得到L-苯丙氨酸。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷