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随着社会经济的发展和科学技术的进步，自动变速器在汽车上的应用，已不再局限于乘用车领域，在载货汽车和客车上也逐渐被广泛地匹配装用。在客车领域首先普及应用到城市[(271253271262306373263265311317241243)250(305267326336241242)300(30330027137
With the development of society and economy and the advancement of science and technology, the application of automatic transmission in automobiles is no longer confined to the field of passenger cars. It has also been widely used in trucks and buses. In the field of passenger cars, it is first applied to cities [( 271 253 271 262 306 373 263 265 311 317 241 243) 250 ( 305 267 326 336 241 242) 300 ( 303 300 271 37