But the results varied widely, possibly because of inaccurate estimates of methyl chloroform released by human activities.

但是，结果已经发生了很大变化，可能是因为对人类活动生成的甲醇氯仿物估计不准造成的。

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Previously, MTBE (methyl tertiary-butyl ether) was the oxygenate of choice, but fell out of favour in 2004 when it was found to contaminate ground water.

以前，MTBE（甲基叔丁基醚）曾作为汽油充氧剂，但是，在2004年，人们发现它污染了地下水，所以就不再使用它了。

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Darwin taught us that it takes many generations for a genome to evolve, but researchers have found that it takes only the addition of a methyl group to change an epigenome.

达尔文告诉我们基因进化需历经数代，而研究人员发现只有增加一组甲基，就能改变外基因。

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For Pinellas Park, Flordia they talk about Methyl Isobutyl Ketone concentrations but Pall neglects to mention dioxane for Ann Arbor.

FORBES: Responsible Investing: Is Pall 'Leading' in Water Filtration? (Governor Snyder's Hometown has a 1,4 Dioxane Problem)

But settling for anything less than 5, 000 square feet of methyl-green turf seems, well, almost un-American.

FORBES: Magazine Article