Method: Sample was refluxed with ethanol in a water bath .
方法：采用乙醇做溶剂，水浴加热回流提取。
One method is to use an oil bath.
一种方法是采用油浴。
The bath maintenance method was presented.
提出了镀液的维护方法。
A method to recover silver from waste photographic film with waste fixing bath was studied.
研究了利用彩印漂定废液回收废感光胶片中银的方法。
Diamond electrode, method for producing same, and electrolytic bath.
金刚石电极，其制造方法，和电解池。
Diamond electrode, method for producing same, and electrolytic bath.
金刚石电极，其制造方法，和电解池。
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