Also, thanks to fracking technology, America has as much as a 100 year supply of cheap, relatively clean natural gas that is pushing coal aside as a favorite fuel for utilities. 此外，拜水力压裂技术所赐，美国现有的廉价、且相对清洁的天然气资源可供其使用100年，煤炭将不再是公用设施的首选燃料。
The fleet coexists, and competes, with a shiny new rapid transit bus system with dedicated lanes that burns clean natural gas. 舰队并存，竞争，以一个全新的公共汽车系统快速公交专用车道，燃烧干净的天然气。
With the developing of the economy, the demand of clean energy like natural gas gradually increased. Our nation successfully developed some high sulfur gas field by now. 但随着经济的发展，人们对天然气这种清洁能源的需求日益加大，目前国内已经成功开发了一些高含硫气田。
In recent years our country pays more attention to energy safety and environmental problems. As a kind of clean energy, natural gas being used increasingly. 近年来随着国家对于能源安全、环境问题的逐渐重视，城市燃气作为一种清洁能源正在被越来越多的使用。
Other energy sources investors are likely to favour include clean coal, liquid natural gas, power grid equipment and hydro power, according to Mr cominotto. 科米诺托指出，投资者可能青睐的其它能源来源包括洁净煤、液化天然气、电网设备与水力发电。
