Three issues need to be paid attention on the use of hydrogen, which are hydrogen energy extraction, storage and transportation and application.

氢能的利用需要解决三个问题：氢能的制取、储运以及应用。

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The history of energy extraction has been marked by a number of disasters that have driven change: Piper Alpha, Three Mile Island, Chernobyl, and the Exxon Valdez to name but a few.

能源开采的历史一向以一系列推动变化的灾难为里程碑：帕玻尔·阿尔法钻井平台爆炸、三里岛核事故、切尔诺贝利核泄漏事故，以及埃克森·瓦尔迪兹号溢油事故。

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If you parse the data, however, you'll find that the increase was almost all concentrated in oil-producing counties, where more than 6% of employment was dependent on energy extraction.

如果仔细分析一下这一数据，你会发现，这种上升几乎全部集中在一些产油地区，而这些产油区有6%的就业率依赖于能源开采。

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In addition, MLPs are limited by law to specific businesses, mostly fossil energy extraction and transport.

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"We understand the necessity of drilling for oil and gas, " said Marc McCord, an activist who has fought against energy extraction in Dallas.

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It has adjusted UK gross value added, a measure of economic output, to exclude energy extraction and use, and also financial and insurance activities.

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