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单词
acetylene
释义
a.ce.ty.lene
HE5set7E7li:n, $-5set-
n [U]
a colourless gas which burns with a very hot bright flame, used in cutting and joining metal
(化学) 乙炔，电石气
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oeuvre
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更新时间：2026/1/15 8:19:41