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- A device that regulates the flow or circulation of air. 调节气流的装置调节空气流动或循环的装置
- To expose to the circulation of air for purification. 使通气使通气，使暴露于空气流通中以净化
- A quadrilateral shape (gradually increasing in size as it goes away from the motor) provides the best circulation of air. 这引擎座为四边形形状(从引擎逐渐加大)提供空气的最佳的循环。
- Harvey discovered the circulation of the blood. 哈唯发现了血液循环。
- We observed the circulation of blood in frogs. 我们观察了青蛙的血液循环。
- The lack of air in the room make everyone sniffle. 屋子里空气缺乏，使得每个人都频频吸气。
- The great virtue of air travel is speed. 乘飞机旅行的最大优点是速度快。
- This new style of air conditioner is noiseless. 这种新型空调没有噪音。
- I'll just trot out for a breath of air. 我要到外面去走走换换空气。
- I want to buy a set of air conditioning. 我想买一台空调。
- The doctor urged a change of air. 医生力劝换个环境。
- This magazine has a circulation of over 1000000. 这份杂志的销售量超过了一百万份。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- The circulation of gossip is abhorrent. 传播流言蜚语是可恶的。
- The lack of air in the room made everyone sniffle. 屋子里空气缺乏,使得每个人都频频吸气。
- What's the circulation of this magazine? 这杂志发行量怎么样?
- We can hear the hiss of air escaping from a tire. 我们能听到一只轮胎的嘶嘶漏气声。
- It has caused the circulation of many stories. 这件事引起了许多谣言的流传。
- Sound travels through the medium of air. 声音通过空气这一媒介传播。
- Harvey discovered the circulation of blood. 哈维发现了血液循环。
