At present, determining methods of the cell concentration in fermentation liquid contain gravimetric method and plate counting method.
目前，测定发酵液菌体浓度的方法有重量法、平板计数法。
Gravimetric method ever used by environment detection station could not analyze the oil contents completely because of limited methods.
生产安全部环境监测站曾采用重量法测量，但由于方法的局限，不能全面分析水质中油的各组份含量。
A gravimetric method for measuring crystal water in uranium tetrafluoride is reported.
本文叙述了测定四氟化铀结晶水的重量分析方法。
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