Coal, by contrast, is associated with a much smaller methane release during mining; but burning it produces about twice as much CO2 as burning natural gas.
与之相反，在煤炭的开采中甲烷释放要少的多；但燃烧煤炭所产生的CO2比燃烧天然气所释放的CO2多出2倍。
Coal contains less energy per unit of weight than weight than natural gas or oil; it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain.
煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。
The project involves the exploration, development, production, marketing, and sales of natural gas, oil and associated condensate from the contract areas.
这一项目包括在合同区内对天然气、石油和凝析油进行勘探、开发、生产、市场开发和销售。
The formation of authigenic kaolinite and secondary pores and charging of natural gas are two associated processes with closely related mechanisms.
自生高岭石与次生孔隙的形成过程与天然气的充注，为两个机理上紧密联系的共生过程。
Associated natural gas widely exists in brine Wells in Penglai Salt Mine, but the output differs a lot.
伴生天然气在蓬盐矿山各卤井中普遍存在，但产量差别很大。
It also analyzes the feasibility of exploiting the natural brine and associated natural gas, and puts forward the exploiting technical scheme.
并对该井开采天然卤水及伴生天然气进行了可行性分析，提出了开采技术方案。
Coalcontains less energy per unit of weight than natural gas or oil; it isdifficult to transport, and it is associated with a host of environmentalissues, among them acid rain.
煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。
The natural gas generator is recommended to use in production station in order to make use of associated gas.
为了利用油田的伴生气资源，在采油站推广应用了天然气发电机。
GASCO is considered to be an operating company which is responsible for extraction of liquid of natural gas from different associated gases.
加斯科被认为是负责从不同的相关的气体中提取液态天然气的经营公司。
In addition, such project has relatively low product mix consistency and is subject to limitations associated with the construction and regulation of natural gas pipelines.
同时此类项目产品关联度低，并会受到天然气管网建设和管理的制约。
According to reservoir classification, natural gas can be divided into gas-field gas, condensate field gas, and oilfield associated gas.
天然气按照油气藏分类可分为：气田气、凝析气田气和油田伴生气。
According to reservoir classification, natural gas can be divided into gas-field gas, condensate field gas, and oilfield associated gas.
天然气按照油气藏分类可分为：气田气、凝析气田气和油田伴生气。
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