单词 | perchloroethylene |
释义 | Word Frequency perchloroethylene(pəˌklɔːrəʊˈɛθɪliːn) or perchloroethene (pəˌklɔːrəʊˈɛθiːn) noun a colourless liquid used as a dry-cleaning solvent. Formula: CCl2:CCl2 |
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