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

然而，只有在细菌（根瘤菌）达到一定数量时引发群体感应机制才能进行固氮。

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Geiger counter was included to measure radiation if at some point an atom decayed. Should that happen, the Geiger counter would trigger the release of cyanide gas, which would kill the cat.

盖革计数器(Geiger counter)被用来测量原子衰变时的放射线，如果原子发生衰变，盖革计数器将会触发氰化物气体的释放，致猫于死地。

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A Geiger counter was included to measure radiation if at some point an atom decayed. Should that happen, the Geiger counter would trigger the release of cyanide gas, which would kill the cat.

盖革计数器(Geiger counter)被用来测量原子衰变时的放射线，如果原子发生衰变，盖革计数器将会触发氰化物气体的释放，致猫于死地。

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The natural gas revolution should trigger a burst of entrepreneurial spirit across the nation as the incremental changes to our civilization should lead to a business revival and the dreams of new fortunes.

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Whittingham noted that, when heated up, the electrolytic solvent in the battery can turn into a flammable gas, which can potentially trigger a fire.

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

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