这种药物有一个很大的限制因素，其药效只能持续6个小时。
This drug has one important limitation. Its effects only last six hours.
药效逐渐消退时，病人就会醒过来。
双s减肥药效果好吗，有副作用吗？
这药效很好，疼痛很快就消失了。
我敢保证药效正在起作用，好的！
药效极强，但会产生不良的副作用。
方法实验室与现场药效试验。
目的：合成新驱避剂，并测定其药效。
Objective: To synthesize a new type of repellant and determine its efficacy.
她需要吃一些药效很强的药。
这类中药的药效是开胃消食。
The effect of this Chinese medicine is to stimulate appetite and digestion.
此外，它们的药效强到可能会产生副作用。
Besides, they are so powerful that they may cause side effects.
每次买完药回来，他都要检查他们的药效。
After buying medicine to come back each time, he should check their efficacy.
双s减肥药效果怎么样？
为了改善阿司匹林药效，降低其毒副作用。
For improving the drug effect of aspirin, reducing its side effect.
这些药的药效不明显。
通常，药效失效的时候噩梦也会随之消失。
Nightmares usually cease once the drug is cleared from the system.
目的研究测试复方高效灭蜱剂对蜱的杀灭药效。
Objective to research and test the efficacy of the high efficient insecticide to kill tick.
因为西药的药效快。
目的：对珍灵口服液进行主要药效及毒性研究。
Objective: to study the main effect and toxicity of Zhenling oral fluid.
即便在有药效的时候，药物也并不会对所有人有效。
The drugs don't work for everyone, even when they are effective.
绿瘦减肥药效果？
本文综述了天然维生素e的药效作用及其提取工艺。
The paper review medicine efficacy and extraction of natural vitamin e.
研究结果表明，影响其药效的主要因素是空间结构。
The steric structure is the main effect on the herbicidal activity as results.
目的：为驱避剂的生物药效测试提供一个新的方法；
Objective:To provide a new method to test the bio-efficacy of repellent.
本发明药物经药效试验表明：可增大主要免疫器官；
The experiments of the medicine effect show that the medicine can increase main immune organs;
这些小片剂每片含有一滴盐酸，药效持续四个小时左右。
These small tablets contain one drop of hydrochloric acid and they last about four hours.
这些小片剂每片含有一滴盐酸，药效持续四个小时左右。
These small tablets contain one drop of hydrochloric acid and they last about four hours.
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