The effect of larch litter on the growth of ash was studied by means of chemical analysis. indoor sand culture test. model land test and model compound test.

通过化学组成分析、室内砂培试验、模拟样地试验和模型物浇灌试验研究了落叶松水曲柳混交林中落叶松枯枝落叶对水曲柳生长的影响。

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But it takes modern science to isolate the pure compound, test it in the lab, and to go on from there to find new agents to fight disease.

但这些可以治疗癌症的物质需要现代的高科技去将它们分离纯化，并且要在实验室重复进行安全测试，还要继续找出能够对抗那种疾病的代替品。

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Pinpointing exactly which compounds have an effect is difficult, lots of blood is needed to be able to single out and test enough of each compound found.

困难的是明确哪种化合物有效，需要筛选大量血液，并对找到的每个化合物进行充分测试。

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To prove the importance of the JAK pathway, someone needed to discover a compound to test the hypothesis that inhibiting the JAK enzyme was of value in treating disease.

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When Epiphany Biosciences, a tiny San Francisco drug developer, was looking for a hepatitis C antiviral compound to test in the lab, it could have saved a few thousand bucks by hiring test tube drones from India.

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Researchers surf this molecular ocean using ultrafast chemical screeners that can test a compound on millions of cells per day.

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