一部分原因是因为那一段时间经济萧条，另一个原因就是可再生能源以及天然气的使用量增加。
That was partly due to the bad economy, and partly to the increased use of renewables and natural gas.
从2000年开始，美国的页岩天然气产量已经激增了十二倍，达到了4.9万亿立方英尺，大约占全国天然气总产量的四分之一。
Production has soared twelvefold since 2000, to 4.9 trillion cubic feet, or a quarter of the country's total gas output.
据能源信息局公布的最新数据，这种非传统的天然气产量占到了美国总产量的四分之一。
Such unconventional gas production accounts for nearly a quarter of total production in the United States, according to the latest figures from the Energy Information Administration.
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%。
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.
现在，随着天然气价格骤降到大约其去年高峰期时价格的三分之一，非传统天然气资产更加便宜。
Now, with the price of gas at roughly a third of its peak last year, unconventional assets are cheaper.
换句话说，大气目前的承受量，仅能允许我们燃烧或排放已知储量四分之一的石油、天然气和煤。
In other words, there is only room in the atmosphere to burn or vent less than one quarter of known oil, natural gas and coal reserves.
阿尔伯达省，出产加拿大三分之二的石油和天然气，以前曾经历过这种情况。
Alberta, which produces two-thirds of Canada's oil and gas, has been here before.
德州拥有美国四分之一的原油储量和30%的天然气。
Texas has nearly a quarter of America's crude oil reserves, and 30% of its natural gas.
一些临床医师可能相信抑郁和焦虑只是气道阻塞患者的症状表现的一部分。
Some clinicians may believe that depression and anxiety are simply part of the symptom profile of patients with airway obstructions.
大部分公司选择了天然气，最新型的燃气发生器可以在短短五分钟内启动和关闭。
Most use natural gas; the latest gas generators can power up or down in five minutes.
俄国，加拿大，丹麦，挪威以及美国都对这个资源丰富的地区提出领土要求。一些人认为北冰洋的石油和天然气储量可能占全球总量的四分之一。
Russia, Canada, Denmark, Norway and the United States have all made claims in the resource-rich region, which some believe could hold up to a quarter of the world's oil and gas reserves.
目前英国天然气四分之一靠进口，大部分来自挪威；据英国电力煤气公司(Centrica)估算，到2015年，进口量会升至四分之三。
Britain currently imports around a quarter of its natural gas, much of it from Norway; by 2015, according to one estimate from Centrica, that could rise to three-quarters.
英国由于发电的需要而对天然气的依赖看起来在十年内将会由低于二分之一上升到四分之三。
Britain's dependence on gas for its electricity seems set to rise from just under half to three-quarters in a decade.
不是只有页岩气是一种新的储备能源：在砂岩中的“致密地层天然气”还有在煤层里的甲烷(一种能在矿井里杀死金丝鸟的气体)也十分有前景。
Nor is shale gas the only new sort of reserve: "tight gas" in sandstones and coal-bed methane (the sort of gas that used to kill canaries down mines) are also promising.
现在，你看到每个州跟每个州的天然气价格不同，因为一部分价格是跟地方税率挂钩的。
Now, you see gas prices are different from state to state because part of the price comes from local tax rates.
业内人士称，该现象部分是由于近日暴雪导致各地天然气需求剧增，另一部分原因是国家缺乏相应的天然气储备机制。
Industry insiders say increased demand due to recent blizzards was partly to blame for the shortages. The country's poor natural gas reserves also are part of the cause.
仅仅一次简单的60分钟的有意识的呼吸练习，也会给身体输入气能或者生命动力。
Just the simple practice of breathing consciously for 60 minutes at a time infuses one's biology with prana, or life force.
人类燃烧煤炭、石油与天然气所排放的二氧化碳，有超过四分之一被海洋所吸收。
The oceans have absorbed more than a quarter of all of human carbon dioxide emissions - generated by burning coal, oil and natural gas.
黄河三角洲拥有十分丰富的土地资源、石油天然气资源、水沙资源与海洋资源。
The Yellow River Delta is a region abundant in land resources, oil, natural gas, water and sand and ocean resources.
想象你自己置身于一个40度的高温房间中，一气呵成、汗流浃背地做足90分钟的瑜伽动作。
Imagine yourself in a studio that is heated to 40 C, moving rapidly from one pose to the next for 90 minutes and leaving puddles of sweat behind.
他便一口气，逐个音符地，写下了这段四到五分钟的作品。
He writes down this four - to five-minute composition note for note in just one sitting.
这篇文章的视角独特，秉笔直抒，入木三分，一气呵成。
The view point of this article is unique, and its description is direct and penetrating at one time.
这些进展，不仅丰富和完善了中国天然气地质理论，而且对指导高效气藏的勘探、拓展天然气勘探领域都有十分重要的意义。
The research progress enriches China natural gas geology, and is very helpful to the exploration and expansion of potential areas of high-efficiency gas reservoirs.
不久以后，我已可以一口气跑三十分钟，且每个星期持续跑三次。
Before long, I was running for 30 minutes straight, which I continue to do three times a week.
但是天然气已经占据了全国五分之二的供电，以及大部分的供热，许多人对于更加依赖天然气这一前景感觉很紧张。
But gas already provides two-fifths of the nation's power and most of its heating, and the prospect of becoming even more reliant on it makes many people nervous.
分析优质储层的分布规律及其控制因素，对于加快天然气的勘探开发进程具有十分重要的现实意义。
It is of practical significance in accelerating the progress of natural gas exploration and development to analyze controlling factors and spatial distribution patterns of high-quality reservoirs.
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。
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。
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.
应用推荐