The results show that the conversion of methane depends on the number of laser pulses irradiating methane and additives in methane. The target materials have no obvious influence.

结果表明，甲烷转化率决定于甲烷被激光照射的脉冲次数和甲烷中的添加剂，而反应器中的靶材料无显著影响。

youdao

Methane content of the gas produced and the methane producing rate were determined by the total number of methane producing bacteria developed.

沼气中甲烷百分含量和日产甲炕效率的高低与产甲炕细菌菌数有关。

youdao

There have been a number of... large-scale methane releases in the past that have come from the ocean that have warmed the climate.

过去由于来自海洋释放的大量甲烷已经导致气候变暖了。

youdao

Methane digesters are increasing in number,especially in Europe.

VOA: standard.2010.02.23

That is, what do we get from a doubling of atmospheric CO2 (or more accurately, CO2-e, the effects of methane, NOX and so on converted to a common as if they were CO2 number).

FORBES: Not Quite Professor Krugman, Not Quite