当今世界,大气污染、温室效应日趋严重。而地球上奔驰的6亿辆汽车是造成排气污染、危害人类生活、破坏生态环境的“祸首”。为此,世界各国严格环保立法,控制汽车排放。各大汽车公司在各自政府的支持下,以开发“有益于人类和地球环境的汽车”为目标,纷纷推出了众多的电动汽车和代用燃料汽车。 In today’s world, air pollution and the greenhouse effect are becoming increasingly serious. And the 600 million cars that run on the planet are the “culprit” that cause exhaust pollution, endanger human life and destroy the ecological environment. To this end, all countries in the world strictly enact environmental legislation to control automobile emissions. With the support of their respective governments, major automobile companies have launched a large number of electric vehicles and alternative fuel vehicles with the goal of developing “vehicles that are beneficial to human and global environment.”