汽车发动机
汽车有各种各样的推进系统，传统汽车的推进系统则是以汽油、柴油、丙烷或天然气为燃料的内燃机，也有以氢气为燃料的燃料电池车和电动汽车（电动机启动汽车），此外还有混合动力车辆、插电式混合动力车。由于续航里程有限，蓄电池成本高，燃料电池车似乎具有优势。基本上为了汽车续航，人们都会建设一个加油站或充电桩网络[1]。
参考文献
- ^ Cardwell, Diane; Krauss, Clifford. Trucking Industry Is Set to Expand Its Use of Natural Gas. The New York Times. April 22, 2013 [April 23, 2013]. （原始内容存档于2021-11-11）.
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