- perchloroethylene degreasing
- 四: four
- 去: go; leave
- 法: law
- 聚四氯乙烯: politef
- 四氯乙烯: carbon bichloride; carbon dichloride; ethylene tetrachloride; perchlorethylene; perchloroethylene; perclene; tce; tetrachlorethylene （cl2c=ccl2）; tetrachlorethylene（cl2c=ccl2）; tetrachloro ethylene; tetrachloroethylene; tetrafluoroethylene; zellon
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