bacteria gas

基本解釋

However, bacteria fix the gas only when their population is high enough to trigger the quorum-sensing machinery.
然而，只有在細(xì)菌（根瘤菌）達(dá)到一定數(shù)量時(shí)引發(fā)群體感應(yīng)機(jī)制才能進(jìn)行固氮。
Bacteria-generated gas bloats the lips and the tongue, the latter often to the point of making it protrude from the mouth: In real life as it is in cartoons.
細(xì)菌產(chǎn)生的氣體把嘴唇和舌頭也鼓起來(lái)了。舌頭脹得伸出了嘴外：敢情漫畫里畫的實(shí)有其事。
They've discovered, among other stomach-turning things, that since bacteria release gas as they gorge on human flesh, you can sometimes determine time of death by measuring the cadaver's bloatedness.
他們發(fā)現(xiàn)，除了其它令人反胃的東西，由于細(xì)菌在尸體上大快朵頤時(shí)會(huì)釋放氣體，有時(shí)可以通過測(cè)量尸體的腫脹程度來(lái)判定死亡時(shí)間。

However, bacteria fix the gas only when their population is high enough to trigger the quorum-sensing machinery.
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