| 单词 | 用于焊接 |
| 释义 | 〔torch〕A portable apparatus that produces a very hot flame by the combustion of gases, used in welding and construction.喷枪：燃烧气体产生大量火焰的一种可携式装置，用于焊接或建筑〔ethylene〕A colorless, flammable gas, C2H 4, derived from natural gas and petroleum and used as a source of many organic compounds, in welding and cutting metals, to color citrus fruits, and as an anesthetic. Also called ethene 乙烯：一种无色易燃气体，C2H 4，可从天然气和石油中获得，用作许多有机化合物的来源，用于焊接和切割金属，柑桔属水果的着色，以及用作麻醉剂 也作 ethene |
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