perchloroethylene

per.chlor.o.eth.yl.ene

n.（名词）
A colorless, nonflammable organic solvent, Cl2C:CCl 2, used in dry-cleaning solutions and as an industrial solvent.
四氯乙烯：一种无色不可燃有机溶剂，Cl2C:CCl 2，用做工业用溶剂以进行干燥、干净的分解