air sacs

同根派生

And the lining of the air sacs is too thick to allow gas exchange.
而且,肺泡內(nèi)壁太厚,無法進行氣體交換。
Birds have up to nine extra air sacs to supplement their lungs.
鳥除了肺還有9個多的氣囊作為肺的補給。
The cells are part of the tiny air sacs lining the lower airways known as aleoli.
這些細胞是小肺部泡囊的一部分，小肺部泡囊又稱肺泡排列在下呼吸道內(nèi)。
COPD occurs when the airways and air sacs in the lungs become inflamed or damaged, most often due to smoking, and is more common after age 45.
COPD通常發(fā)生于肺部的氣道或肺泡發(fā)生炎癥或損傷，大多由吸煙導致，而且通常發(fā)生在45歲之后。
By blocking that enzyme system in the lungs, the virus allows liquid to leak into the air sacs, making them boggy and inefficient.
通過抑制肺中該酶系，病毒使體液滲漏進氣囊，使之機能衰竭而無效。