These cases are under laboratory investigation.
对这些病例的实验室调查正在进行之中。
Additional laboratory confirmation is under way.
实验室正在做进一步确认。
The study took place under laboratory conditions.
研究在实验室进行。
The procedure is simple and can be carried out under ordinary laboratory conditions.
方法简单，在一般实验室中即可完成。
The procedure is simple and can be carried out under ordinary laboratory conditions.
方法简单，在一般实验室中即可完成。
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