The heat transfer mathematic model for solar marsh gas pit was set up based on the test results. It is shown that the good agreement between the numerical solutions and experiment data.

同时建立该沼气池的传热数字模型，获得了模型的数值解，实验结果和计算结果相互校验，最后整理得出了池温的分布规律。

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So when a quasar goes dormant, what's left are the things we associate with a normal galaxy — stars and gas swirling around a central and hidden pit of matter.

因此当一个类星体趋于休眠，留下来的就是我们通常和一个正常的星系联系起来的东西——星星和气体，他们围绕着一个隐藏着物质的大洞形成一个漩涡。

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Greenhouse gas emissions of tar sands crude are 40% higher than conventional oil, and the open-pit mining has devastated Alberta's boreal forest.

焦油砂的温室气体排放量比普通石油高40%，露天采矿已经极大地破坏了阿尔伯塔的北方气候带森林。

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As a result, gas station pit stops combine to suck up 4% of the average Wyoming resident's annual gross income, compared to less than 2% for a typical New Yorker.

FORBES: Magazine Article

Drivers could communicate with their pit crews only while easing off the gas to turn a corner.

FORBES: Racecar Drivers To Use Bell Labs Microphone

But the large amount of gas released following the tremor has been both potentially dangerous and damaging to the pit.

BBC: Earthquake sparks methane alert