... internal nucleophilic substitution 分子内亲核取代 internal return 内返 inverse isotope effect 逆同位素效应 ...
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理论上琥珀酰胆碱由于增加胃内压，存在返流胃液及胃内容物的危险。
There is a theoretical risk of the aspiration of gastric fluid and contents with the increased intragastric pressure associated with the administration of succinylcholine.
这表明在高压下规整填料的传质效率随压力的增加而下降，这主要归因于气相返混和液相在填料内的不均匀分布。
It indicates the reduction of mass transfer efficiency of the structured packing at high pressure is mainly due to the effect of vapor backmixing and the subsequent liquid maldistribution.
在一定的工艺条件下，流动反应器内物料的返混影响着平行反应的产物分布。
In a certain process condition, the back mixing of the substances in the mobile reactor affects the product distribution in reactions of parallel.
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