cresylic acid, usually containing from 20 to 40 percent phenol, is the second solvent.
一般含20%~40%苯酚的甲酚溶剂。
cresylic acid, usually containing from 20 to 40 percent phenol, is the second solvent.
一般含20%~40%苯酚的甲酚溶剂。
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