单词：air draft
air draft的用法和样例：
例句
- When fibers swell, they fill the air spaces and thus reduce ventilation.一般纤维膨胀后，占据了空隙，因而减少了通气能力。
- Kleb breathed air from the tubes of an atmospheric purifier he wore over his shoulder.克莱布呼吸的空气由通气管从肩上的空气净化器接出。
- The windows permit light and air to enter.这些窗户采光及通风性能良好。
- Boilers are also classed as natural or forced draft types.锅炉还可分成自然的或动力的通风类型。
- Why can a hydrofoil move on a layer of air?为什么气垫船能靠后方的气流移动？
- Ribbonsof draught cut through the smoky air.一缕缕的气流穿过烟雾腾腾的空气。
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