downcast air

• 进风

downcast air的用法和样例：

例句

1. Experiments were conducted to investigate thermal decay in an underfloor plenum under different inlet air conditions and heat sources located in the test room on the plenum.
   摘要对不同进风参数和不同室内热源条件下地板送风静压层的热力衰减进行了实验研究。