Siduria recently implemented a program to convert heating systems from oil to natural gas.
Siduria最近实施了一项计划：将供暖来源从石油改为天然气。
Then in the 80s, this trend reversed itself when the price of oil and natural gas went down.
到了80年代，随着石油和天然气价格的下跌，这一趋势发生了逆转。
Natural gas and coal—also fossil fuels—have similarly seen price declines that look to be long-lived.
天然气和煤炭，还有化石燃料，也出现了类似的价格下跌，而且看起来会持续很长时间。
Dakota Gasification of North Dakota captures CO2 at a plant that converts coal into synthetic natural gas.
北达科他州的达科他气化在一个将煤转化为合成天然气的工厂捕捉二氧化碳。
Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment.
石油由原油和天然气组成，它们似乎来源于海洋沉积物中的有机物质。
Indeed, on a global scale, fertiliser manufacturing consumes about 3-5% of the world's annual natural gas supply.
事实上，在全球范围内，化肥生产消耗了全球每年约3-5%的天然气供应。
At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils.
在炼油厂，从地下提取的原油被分离成天然气、汽油、煤油和各种其他类型的油。
Already there are many alternative fuel vehicles on the market, powered by anything from solar power to natural gas.
市场上已经有很多替代燃料汽车，其动力来源从太阳能到天然气无所不包。
The economic downturn is drying up demand for oil and natural gas, dropping the benchmark price for a barrel of oil to below $50.
经济低迷正在抑制市场对石油和天然气的需求，导致基准原油价格跌破每桶50美元。
Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels—30% each for coal and oil, 25% for natural gas.
可再生能源只占全球主要能源消耗的一小部分，化石能源仍然占主导地位——煤炭和石油各占30%，天然气占25%。
Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.
煤炭和天然气主要用于发电，而石油主要用于给运输提供能量，但所有这些能源的价格是相互关联的。
When a property owner discovers that oil or natural gas exist beneath property for which a title has been legally and completely obtained, rights to the embedded minerals can be leased to others.
当财产所有人发现在已经合法和完全获得所有权的财产下面存在石油或天然气时，对埋藏在其中的矿产的权利可以出租给其他人。
More than one-quarter of the world's oil and almost one-fifth of the world's natural gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land.
全球超过四分之一的石油和近五分之一的天然气来自近海，尽管近海钻探的成本是陆地钻探的六到七倍。
The Sampaguita gasfield near Reed Bank is estimated to hold about 20 trillion cubic feet natural gas.
礼乐滩附近的桑帕吉塔天然气场被测出至少蕴含20万亿立方英尺的天然气。
Climate Benefits of Natural Gas May Be overstated.
天然气的气候效应被低估？
Most conventional fertilizers rely on ammonia made from natural gas.
大多数人造肥料中的氨来源于天然气。
Natural gas markets, which are regional, face some challenges in 2010.
以地域划分为特征的天然气市场2010年将会面临一些挑战。
In new residential areas, coal heating had been replaced by natural gas.
在新住宅区，天然气所取代燃煤供暖。
The IEA even warned of the possible formation of a cartel for natural gas.
国际能源机构甚至警告称，可能会形成一个天然气垄断组织。
But producing the steam means burning natural gas, which emits carbon dioxide.
但是，要生产蒸汽就要燃烧天然气，这还是会产生二氧化碳。
A global glut, or at least expanding supplies and falling prices, in natural gas.
全球天然气供过于求，或者说是它的供应量加大并且价格下跌。
Western Europe continues to have relatively ample natural gas supplies in storage.
而西欧国家有相对比较充裕的天然气储备。
Industrial exports include gold, mercury, uranium, and natural gas and electricity.
工业出口包括黄金，汞，铀，天然气和电力。
Some oil firms do this already to carbon dioxide that forms part of raw natural gas.
许多石油公司已经这样做了，将二氧化碳变成天然气的一部分。
But if natural gas is not produced cleanly, it will not prove to be so cheap, either.
但如果天然气的生产过程是不清洁的，那么它的成本低廉就无从谈起。
Coal typically produces almost twice as much carbon dioxide per kilowatt-hour as natural gas.
通常来讲，煤生产每千瓦时产出的二氧化碳约为天然气的两倍。
Occurrence: Helium comes from natural gas, deposits within Earth, and can be isolated from air.
存在：氦存在于自然大气中，在土壤中沉积，而且能从空气中分离出来。
Occurrence: Helium comes from natural gas, deposits within Earth, and can be isolated from air.
存在：氦存在于自然大气中，在土壤中沉积，而且能从空气中分离出来。
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