您要查找的是不是：
- natural gas policy act (NGPA) 天然气政策法
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- A severe natural gas shortage shut down many plants. 天然气的严重缺乏使许多家工厂都停工了。
- They continued down until they came to some pockets of natural gas. 他们继续往下钻，终於找到了一些天然气的气阱。
- Ten dollars' worth of natural gas; wanted their money's worth. 值十美元的天然气; 需要它们的货币价值
- A gaseous fuel, such as natural gas. 气体燃料处于气态的燃料，如天然气
- The pipeline conveys natural gas to the Midwest. 管道将天然气输送到中西部。
- Why has the Energy Policy Act been called an ambitious piece of legislation? 为什么能源政策立法被称为立法上具有野心的一部分。
- Where are oil and natural gas found in Britain? 在英国哪里发现了石油和天然气?
- Shizhu County Natural Gas Chemical Facto. 石柱县天燃气化工厂。
- Refined oil, the natural gas market supply stable. 成品油、天然气市场供应平稳。
- Natural Gas Hydrate: the savior of energy crises? 可燃冰:能源危机的拯救者?
- Has natural gas been found in this area? 这个地区发现天然气了吗?
- Natural gas will be the first to run out. 天然气将首先被用完。
- Such a review, asserts Jon Sohn of Friends of the Earth, is required by the National Environmental Policy Act. 地球之友的索恩表示，根据美国国家环境政策法，这项评估是必要的。
- Natural gas is often present in the reservoir rock. 储油岩中常有天然气。
- Ethanol's quick growth dates back only two years, to the 2005 Energy Policy Act. 乙醇的快速成长仅是这二年的事情，回溯到2005的能源政策法案。
- Exports: crude oil, natural gas, refined products. 出口:重油;天然气;精炼产品.
- A well or drilling that yields natural gas. 一种产天然气的井或钻井
- National Environmental Policy Act (1970) established the Environmental Protection Agency (EPA) to enforce federal laws that involve the environment. 1970年国家环境政策法成立了环境保护局以实施有关环境的联邦法律。
