它经过准备，多次稀释和一系列的测试，最终投入使用。
It has been prepared and diluted many times, and put through a series of tests before it is ready to use.
在对抚仙湖入湖河流BOD5进行分析的过程中，对几种接种液的来源、配比、预处理及接种稀释水的配制方法进行了研究，并通过一系列的实验数据说明了这些配制方法的可行性。
In the analysis of the BOD5 of inlet water of Fuxian Lake, the source, ratio and pre-treatment of inoculums and the preparation method of inoculums diluting water were also studied.
应用有限稀释法，由小鼠srs - 82腹水瘤细胞系分离得到SAC克隆株系列。
A clone system designated SAC was established from a SRS-82 mouse ascitic turnout cell line by using limited dilution method.
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