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在目前的中国,由于经济越来越发达,汽车拥有数量大幅提高。北京机动车拥有量超过520万辆,千人拥有量达234辆。上海汽车拥有量超过280万辆,天津超过200万辆。全国有12座城市汽车拥有量超过100万辆。全国机动车超过2.33亿辆。汽车不再是富贵的象征,而成为名符其实的交通工具。任何事情都有利、弊的两面。汽车给我们带来出行方便的同时,也带来交通堵塞、停车困难、空气与噪声污染、交通事故频发等一系列问题。这些事各有责权,让各个部门逐步解决。这篇小文只讲一些与声学有关的事。驾车出行,如果一路顺风,是一件开心的事。风驰电掣,很快到达目的地。中国古代没有汽车,代步有骑马、马车,顺水可行舟等。
In present China, the number of car ownership has risen sharply as the economy is getting more developed. Beijing has more than 5.2 million motor vehicles and has a fleet of 234 people. Shanghai Automotive has more than 2.8 million vehicles and more than 2 million vehicles in Tianjin. There are 12 cities in the country with more than 1 million vehicles. The number of motor vehicles in the country exceeded 233 million. Car is no longer a symbol of wealth, and become a veritable means of transport. Everything is good and bad. Car brings convenience to us at the same time, but also brings a series of problems such as traffic jam, parking difficulties, air and noise pollution, frequent traffic accidents and so on. Each of these issues has its own responsibilities and powers so that all departments can gradually solve the problem. This essay speaks only about acoustics. Travel by car, if the wind, is a happy thing. Passion, quickly reach their destination. There is no car in ancient China, there are riding a horse, carriage, boat and so on.