The people at the gas stations where I asked for a gas can told me that they couldn't lend them out "for safety reasons," but that I could buy a really crappy one-gallon can, with no cap, for $15.

加油站工作人员以“安全原因”为由拒绝借给我汽油罐，却告诉我可以用15美金价格购买这不值一文的东西—一加仑体积的罐子。

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Gas may be found either dissolved in reservoir fluids or as free gas that tends to form a gas cap beneath the top seal on the reservoir trap.

气体可能在储层流体中以溶解形式或作为游离气而存在，游离气趋于在储层圈闭的盖层下面形成气顶。

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With further understanding of gas cap reservoir recovery mechanism and the progress in technology, obstruction recovery method has become an important method for developing gas cap field.

随着对气顶油田开采机理认识的深化和工艺技术的进步，目前隔障开采已成为气顶油田开发中重要方法之一。

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Mr.Obama and Democrats in Congress are backing a "cap and trade" bill, which aims to cut greenhouse gas emissions 17 percent by 2020.

VOA: standard.2009.05.30

The addition of Franken will provide the Democrats with 60 votes in the U.S.Senate, giving President Barack Obama and party leaders a better chance of passing controversial legislation such as health care reform and a cap-and-trade bill aimed at curbing greenhouse gas emissions linked to global warming.

VOA: standard.2009.06.30

It could be as simple as a loose gas cap that needs tightening.

FORBES: What That Dreaded 'Check Engine' Repair Will Cost You

However, if the solution is a simple DIY remedy like tightening your gas cap, you can go ahead and turn off the light with the app itself, saving you time and money.

ENGADGET: Automatic Link connects phone and car for better driving, we go hands-on (video)

Many of these gadgets can be used to turn off a check engine light, which can be a money-saver if you avoid a trip to the garage simply because the gas cap was loose, a common cause of check engine alerts.

WSJ: Diagnostic Tools to Unleash Your Inner Mechanic