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.
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.
对《金匮要略》中以服药后的反应判断药效的内容进行了探讨。
"Essence" in response to medication to determine the content of efficacy are discussed.
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.
他的血压很高，并且医生给他开了比以前药效更强的药。
His blood pressure was up and stronger medicine was prescribed.
我敢保证药效正在起作用，好的！
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.
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.
这些药的药效不明显。
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.
她需要吃一些药效很强的药。
药性，药效药品的特点成性质，尤指那些使具有医疗效用的物品。
The characteristics or properties of a drug, especially those that make it medically effective.
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.
虽然麻痹的作用不是永久性的，但也有八个月的药效。
Although the paralyzing effects are not permanent, they can last up to eight months.
“微量元素特征谱”可以作为药物的“生物药效探针”，对中药的药效给予客观评价。
The diagnostic table of trace element can be a good probe for biologic pharmacodynamics.
因为西药的药效快。
此种持续性的释放药效配方是可以依照不同的应用而量身订作的。
The release profile can almost be tailor made to suit a particular application.
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.
这类中药的药效是开胃消食。
The effect of this Chinese medicine is to stimulate appetite and digestion.
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.
药效极强，但会产生不良的副作用。
但是，由于其药效物质基础不清楚，使质量控制上存在一定的问题。
However, because of the indistinctness of its effective substances, the quality control has some problems.
但是，由于其药效物质基础不清楚，使质量控制上存在一定的问题。
However, because of the indistinctness of its effective substances, the quality control has some problems.
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