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词汇 lead free
释义 lead free li:dfri: 短语¹⁰⁶¹⁰⁰⁺
基本英英例句
无铅

形容词 lead-free:
of gasoline not containing tetraethyl lead Older homes may have lead pipes, but even new plumbing that's lead free can still contain lead in brass fitting or faucets or in copper pipes with soldered joints.
旧的家庭用的是铅管,但是即使是新的无铅水管装置在焊接接头的铜管件或水龙头或铜管中也含有铅。 neworldedu
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