A device for admitting fresh air into a room in an upward direction.
| 单词 | θ61419 |
| 释义 | the world > physical sensation > cleanness and dirtiness > freedom from impurities > removal of impurities > ventilation and air-conditioning > [noun] > device for admitting fresh air (1) Tobin's tube1884 A device for admitting fresh air into a room in an upward direction. |
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