| 词汇 | gas mantle |
| 释义 | gas mantle n. A tube-like structure consisting of oxides of certain rare metals, which, when placed over a Bunsen gas flame, is heated so as to give out light. 煤气灯白炽罩(一种含有金属氧化物的管状结构，罩于煤气灯口，热后即发白光)。 |
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