air duct
noun
A duct for the passage of air, especially (Zoology ) one connecting the swim bladder of a fish with its mouth.
Origin
Mid 18th century. Originally after French conduit à air.
| 单词 | air duct |
| 释义 | air ductnoun A duct for the passage of air, especially (Zoology ) one connecting the swim bladder of a fish with its mouth. Origin |
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