n.气流；清风房车（Airstream，北美历史最悠久的房车制造商）
Noise will probably not hurt the airstream. 噪音基本上不会影响气流。
A rather cold northwest airstream will cover our province. 一股偏冷的西北气流将控制我省。
The fan adds energy to the airstream, increasing velocity. 而风扇的功用就是增加气流的动能，增加推进速度。
