The environmental pollution and energy crisis have been promoting the development of substitute fuel of automobile. NG is a clean and ideal substitute fuel at present.
环境污染和能源危机推动了汽车代用燃料的发展，而天然气是目前理想的汽车代用和清洁燃料。
参考来源 - 天然气发动机混合器的优化设计·2,447,543篇论文数据，部分数据来源于NoteExpress
The increasing use of dried animal waste as a substitute fuel has also hurt the soil because this valuable soil conditioner and source of plant nutrients is no longer being returned to the land.
人们开始越来越多地使用脱水后的动物粪便作为替代燃料，这同样会损害土壤，因为这些珍贵的土壤改良剂和植物养分的来源将无法再回归到土壤之中。
Methyl alcohol is an important Organic chemical material and is also a kind of clean substitute fuel.
甲醇作为重要的基础有机化工原料，也是清洁代用燃料，在化工、医药、轻工、纺织等行业具有广泛的用途。
The article exposes present situation and future develop of methanol as substitute fuel oil for gasoline.
阐述了甲醇替代汽油作车用燃料的现状和前景。
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