Nearly one-quarter of global greenhouse gas emissions are from the transport sector and around 30% of this are from road freight transport. Seeking to diversify the energy matrix and to reduce air pollution, we studied performance, emissions, and advantages/disadvantages of several alternative fuels...
Natural gas, which is analternative fuelfor crude oil fuels, has been widely used as the energy source forinternal combustion enginesin the past decades [1,2]. With the increasing awareness of environmental and energy issues, the adoption ofnatural gas engineshas been more and more focused owin...
3 alternative n.可供选择的事物adj.可供替代的,可供选择的(alternatively adv.二者选一地;可供选择地)(1) Natural gas is another abundant fuel that experts consid-an alternative to...的替代品er as an alternative to gasoline. have no alternative but to do sth别无选择(2) The coal on the eart...
故答案为 alternatives。 题目四: 根据“have no alternative but to do sth.”固定搭配,改写后的句子为:We have no alternative but to take immediate action to stop pollution. 题目五: 根据句意,空格处需填入表示“寻找替代者”的动词短语。故答案为 looking for an alternative to Mary。
Taking it to the bridge: natural gas as an "alternative" fuel has producers and environmentalists holding hands, but skeptics abound--and coal and oil aren... A Best 被引量: 0发表: 0年 Invisible Fuel: Manufactured and Natural Gas in America, 1800-2000 (review) In lieu of an , here...
Propane is also an excellent fuel source for outdoor cooking as die-hard barbequers prefer the taste of food cooked over a propane grill to one fueled by natural gas. If you’re looking for a cost-effective and familiar alternative to heat your everyday uses, propane is a good choice to...
The natural gas used as fuel is mostly methane, although smaller amounts of other compounds can be present. Like gasoline or diesel, it falls into the hydrocarbon family. Natural gas comes from two major sources. It can be extracted as a byproduct of the crude oil refining process, or it...
单句语法填空Natural gas is another abundant fuel that experts consider an alternative gasoline Since you have accepted the job, you have no alternative but(do) it well, however difficult it is We could go to the Indian restaurant, or(alterna-tive), we could try that new Italian place If yo...
Natural gas is another abundant fuel that experts consider an ___ (替代物)to gasoline. 答案 答案见解析"替代物"alternative,可数名词,空前有不定冠词an限定,应用单数形式。故填:alternative。天然气是专家们认为可以替代汽油的另一种丰富燃料。做这类题型,首先根据所给汉语明确句子所要考查的单词或短语的...
Natural gas is a fossil fuel consisting of hydrocarbons primarily of methane including varying amounts of other higher alkanes and, a small percentage of nonhydrocarbons such as carbon dioxide, nitrogen, hydrogen sulfide, and water vapor. It is dominantly used for heating, cooking, and electricity...