他们发现，飞机消耗的燃料减少了15%（同时二氧化碳排放量也减少了）。

They found that the aircraft consumed as much as 15% less fuel (coupled with a reduction in carbon dioxide output).

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把食物放进微波炉里几分钟似乎完全无害，但一项新的研究发现，在欧洲，这种快速烹饪的机器的碳排放量几乎和700万辆汽车的一样多。

Popping food into the microwave for a couple of minutes may seem utterly harmless, but Europe's stock of these quick-cooking ovens emit as much carbon as nearly 7 million cars, a new study has found.

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她发现有91公吨未经控制的苯排放，比规定量高出15倍还多。

She found 91 metric tons of uncontrolled benzene emissions, more than 15 times higher than what the rules allowed.

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