return air

基本解釋

Figure 5 shows the effectof different floor configurations on return air space.
圖5展示了回流氣體空間不同的地板結(jié)構(gòu)的效果。
Then, after taping and painting, screw a “return air” grate over the opening to conceal it but still have access.
然后鑲邊、涂飾面，再然后在開口上安裝“回風(fēng)”把開口隱藏起來，但“回風(fēng)”要是可以拆卸的，以便還能接觸到內(nèi)部的構(gòu)件。
About 240 square inches(1548cm2) of return air passage are needed for the average trailer's refrigeration fan to operate at 100 percent capacity.
如果想讓拖車內(nèi)的制冷風(fēng)扇100%地工作，那么，回流空氣的量大概為240平方英寸（1548cm2）。

He also announced that two Turkish military air ambulances had been sent to Israel to help return the wounded.

UTC's solution: Pass the return air through an aluminum filter sprayed with titanium dioxide that, hit with ultraviolet rays, sets off a chemical reaction that breaks down nasty organic compounds like benzene and formaldehyde into carbon dioxide and water.
FORBES: Companies & Strategies
The panel recommended an alternative force structure that would return the Air Force and Navy to the size proposed by the BUR almost 20 years earlier.
CENTERFORSECURITYPOLICY: Center for Security Policy The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century