机械动力的来源可能各有不同：由水、风、蒸汽或气体发动的涡轮机；汽油引擎；或柴油引擎。
The mechanical power may come from various sources: turbines powered by water, wind, steam, or gas; gasoline engines; or diesel engines.
有些卡车已经使用清洁柴油引擎。其它一些卡车也有使用压缩或液化天然气燃料的。
Some trucks now run on cleaner burning diesel fuel engines, while others are using compressed or liquefied natural gas.
学习美国利用海藻生产柴油或喷气机引擎燃料的燃油技术。
To learn technology on producing diesel or fuel of jet engine with algae from America.
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