| 单词 |
flexible ventilation ducting |
| 释义 |
flexible ventilation ducting flexible ventilation ducting[‚flek·sə·bəl vent·əl′ā·shən ‚dək·tiŋ] (mining engineering) Flexible fabric tubes covered with rubber or polyvinyl chloride, used for auxiliary ventilation. |
| 随便看 |
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