More than half of all U.S. households are heated with natural gas.
超过半数的美国家庭用天然气供暖。
Electricity, gas and water were considered to be natural monopolies.
电、煤气和水垄断经营过去被认为是理所当然的。
Because oil and natural gas became scarce?
因为石油和天然气变得稀缺了，是吗？
Well, there were other energy choices like oil and natural gas, right?
因为还有类似石油和天然气这种其他的资源可供选择，对吗？
The amount of oil and natural gas in the Earth was still plentiful.
地球上的石油和天然气储量仍然丰富。
Deflated values also mean that natural gas extractors see no reason to capture helium.
放气值也意味着天然气提取器认为没有捕获氦的需要。
Oil and natural-gas prices are down.
石油和天然气价格正在回落。
An odorless, colorless, tasteless gas that you know as natural gas.
甲烷是一种无色无味的气体，大家都知道这是一种天然气。
Low natural-gas prices are also undermining the case for wind power.
天然气价格的低廉同时也在逐渐消弱着风能的市场。
Natural gas had fewer hidden costs than coal.
天然气的隐性成本比煤炭要低不少。
Natural gas is not without problems.
天然气也并不是没有任何问题的。
天然气便宜了。
But what of our natural gas glut?
但是天然气供过于求怎么办？
Shale gas is an important unconventional source of natural gas.
页岩气是一种重要的非常规天然气的来源。
Not long ago, America depended on imports of liquefied natural gas.
不久前，美国还需要依赖液化天然气的进口。
I picked Matt and we together we chose natural gas.
我和麦德一组，我们选了天然气做研究课题。
最主要的原因：天然气。
需要一些天然气吗？
Generating electricity from natural gas is relatively clean.
从天然气中发电是相对洁净的。
Unfortunately, natural gas can't yet be easily substituted for oil for transportation.
不幸的是，由于运输的关系，天然气还不能轻而易举地取代石油。
The closest substitute for coal in electricity generation is natural gas.
与煤炭最相近的发电替代品就是天然气。
Plans for a push into liquefied natural gas look unrealistic.
推进液化天然气的计划看起来不大可行。
The company's technology converts coal into cleaner-burning natural gas.
公司的技术可将煤转换为更清洁的天然气。
The region may hold 2 quadrillion cubic feet of natural gas.
该地区的天然气储量可能达2千万亿立方英尺。
For natural gas, the picture is different.
说到天然气，那又是另一番景象。
Some require pure hydrogen gas. Others can run on natural gas or even diesel.
一些燃料电池需要纯氢气，另一些则利用天然气，甚至柴油。
Some require pure hydrogen gas. Others can run on natural gas or even diesel.
一些燃料电池需要纯氢气，另一些则利用天然气，甚至柴油。
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