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1·He felt rather awkward in presence of ladies.

他在女士面前有些窘。《新英汉大辞典》

2·How empty is theory in presence of fact!

跟事实一比，理论就显得太空洞了。

3·Corrosivity Corrosive in presence of copper.

腐蚀性对于铜会产生腐蚀性。

4·The comments were made in presence of Pope Benedict by one of his inner circle.

在教皇在场的情况下，教皇核心集团一名成员发表了该评论。

5·MBS is graft polymers prepared by polymerization of MMA in presence of PBD-styrene rubber emulsion.

MBS是由丁苯橡胶与甲基丙烯酸甲酯经乳液聚合而得的接技聚合物。

6·The reaction of gallium with 8-hydroxyquinoline 5 sulfonic acid in presence of CTMAB has been studied.

研究了在溴代十六烷基三甲铵存在下，8-羟基喹啉-5-磺酸与镓的络合反应。

7·Bids will be opened immediately offer the deadline in presence of bidders' representatives who choose to attend.

当参加投标的那些投标人的底价出现时，标价将立即公开。

8·Penalty function based method is a very effective method to estimate the number of sinusoid in presence of additive noise.

在加性噪声情形下，惩罚函数方法是一种简洁有效的谐波信号个数估计方法。

9·Traces of sulfate ions in etching solution for aluminum foil have been determined by turbidimetry in presence of cation surface activator-hexadecyl trimethyl ammonium bromide (CTMAB).

在阳离子表面活性剂——十六烷基三甲基溴化铵（CTMAB）的存在下，用比浊法对铝箔蚀腐液中微量硫酸根离子进行测定。

10·He said they were opposed to what he described as the presence of alien forces in the region.

他说他们反对他所描述的在该地区有外国军队的存在。《柯林斯英汉双解大词典》