当采用替代的提纯方法时，获得的产品应象第一次一样，接受最后加工操作与检验。
When an alternate purification procedure is used, the recovered material should be subjected to the same final processing operation and the same testing as for the first time.
当采用替代的提纯方法时，获得的产品应象第一次一样，接受最后加工操作与检验。
When an alternate purification procedure is used, the recovered material should be subjected to the same final processing operation and the same testing as for the first time.
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