Its germicidal efficacy increased with increasing temperature and decreased in presence of organic substance.

杀菌作用因有机物存在而减弱，随温度升高而增强。

The side chains of o xylene were chlorinated in presence of the catalyst N , N dimethylformamide.

以邻二甲苯为原料,在催化剂二甲基甲酰胺存在下进行侧链氯化反应.

The side chains of o xylene were chlorinated in presence of the catalyst N, N dimethylformamide .

以邻二甲苯为原料 ，在催化剂二甲基甲酰胺存在下进行侧链氯化反应。

Pinacolone reacts with diethyl oxalate in presence of sodium methylate under refluxing to get both methyl and ethyl pivalopyruvates in 88% yield.

频哪酮与草酸二乙酯在甲醇钠存在下回流反应制得新戊酰丙酮酸酯，收率88％；

Spray-drying or granulating the (water-soluble part of the) vegetation water (concentrate), preferably in presence of an adjuvant;

优选在佐剂的存在下，将所述植物水（浓缩物）（的所述水溶性部分）喷雾干燥或粒化；

Nerolidol was prepared by selective partial hydrogenation of dehydronerolidol at normal or nearly normal pressure in presence of a catalyst.

脱氢橙花叔醇在催化剂存在和常压（或接近常压）下发生选择性部分氢化反应，形成橙花叔醇。

You'll find it in leafy greens, too—in greater quantities, in fact—but in me the built-in presence of my monounsaturates helps the body absorb it, eventually shuttling it to the brain.

绿色蔬菜中也含有叶黄素，且含量更多。但在我体内，单不饱和脂肪酸的存在帮助身体吸收它，最终把它运送到大脑。

Corrosivity Corrosive in presence of copper.

腐蚀性对于铜会产生腐蚀性.

Interrogate her son in presence of his classmates

（老师）在一众学生面前盘问儿子

Girl, actually I'm just very shy in presence of strangers.

人们总误解我是个冷淡的人，其实我只是在陌生人面前很害羞。