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80年代以来,采用高压钢瓶贮存燃料的第二代天然气汽车取代了采用储气橡胶口袋作为供燃装置的第一代天然气汽车,使天然气汽车在外形上与燃油汽车一样美观。随着天然气汽车技术及产品日臻完善,使液化石油气和压缩天然气成为最适宜的汽车替代燃料。目前全世界约有500万辆天然气汽车,其中,液化石油气汽车约400万辆,压缩天然气汽车近100万辆。
Since the 1980s, the second-generation natural gas vehicles that use high-pressure cylinders to store fuel have replaced the first-generation natural gas vehicles that use gas-filled rubber pockets as a fueling device to make natural gas vehicles as beautiful as fuel-powered vehicles. With the improvement of natural gas vehicle technology and products, liquefied petroleum gas and compressed natural gas become the most suitable alternative fuel for automobiles. There are currently about 5 million natural gas vehicles in the world, including about 4 million liquefied petroleum gas vehicles and nearly 1 million compressed natural gas vehicles.