In the experiments of continuous enrichment and rolling tube we compared the effects of penicillin.

在连续富集和每次滚管中对增加青霉素进行了比较试验。

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The experiments on enrichment of gold by bacteria indicate that bacteria have a very intense enrichment capacity for gold and act as an arrester of trace gold in sea water.

细菌富集金的实验表明，细菌具有强烈富集金的能力，起到了海水中微量金捕集器的作用。

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They include Iran's ongoing uranium enrichment program, experiments with small amounts of plutonium, and a possible program that combines work on high explosives, missiles, and uranium.

NPR: Iran Defies Security Council, Enriches Uranium