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。
The rattailed maggot, for example, possesses a "snorklelike" telescopic air tube . 例如长尾蛆就有一个“通气管”似的伸缩吸气管。
With a snorkel, however, a diver can stay under water for quite a long time . 可是，潜水员携带一根通气管就可以在水下呆很长时间。
Tachycardia may result from pain, apprehension, hypoventilation, or hypovolemia . 心动过速可由于疼痛、恐惧、通气不足或低血容量引起。
The purpose of the float-bowl vent is to equalize the effects of a clogged air cleaner . 浮子室通气孔的效用是补偿空气滤清器阻塞的影响。
What could the sharks do to his air pipe? how could he ward them off or destroy them ? 鲨鱼将如何对待他的通气管呢？怎样才能驱散或杀死鲨鱼呢？
The solenoid plunger pulls the vent valve down, blocking off the passage to the charcoal canister . 电磁柱塞拉下通气阀，堵住通向活性碳罐的通路。
Acute respiratory insufficiency in the postoperative patient may be caused by defective ventilation . 手术后病人的急性呼吸功能不全，可因不足的通气所引起。
On friday morning she meant to go very early to lady russell, and accomplish the necessary communication . 星期五早晨，她打算一大早就去找拉塞尔夫人，完成那必要的通气任务。
When the hood was up and the engine idling, crankcase vapors could often be seen escaping from the open breather cap . 当发动机盖打开并且发动机怠速运转时，我们常常可以看见从开式通气盖漏出的曲轴箱蒸气。
