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汽车是造成城市空气污染的主要罪魁祸首,为害匪浅。为了保护环境和人体健康,美国的一家公司发明了一种装置,它可以一反常态,把汽车变成会“吃掉”污染空气的工具。这种新装置是一个催化转换器,通过化学反应减少空气污染。现在的汽车虽装有一个催化转换器,当污浊的气流通过转换器时,里面的催化化学物可以把汽车污染变为不甚有害的化学物质。但是部分污染物还是溜进空气中,形成烟雾,污染空气,使人的眼、鼻、喉产生灼痛,呼吸发生困难。而新的催化转换材料是涂在汽车的散热器上的一层催化物质,它有助于消除烟雾。
Car is the main culprit in the air pollution caused by the city, harmful. To protect the environment and human health, a U.S. company invented a device that could uncharacteristically turn cars into tools that “eat” the polluted air. The new device is a catalytic converter that reduces air pollution through chemical reactions. Although today’s cars are equipped with a catalytic converter, the catalytic chemicals inside can turn pollution from cars into less harmful chemicals as dirty air flows through the converter. However, some pollutants still slipped into the air and formed smoke and polluted the air, causing burning, breathing and difficulty in the eyes, nose and throat. The new catalytic converter is coated with a layer of catalytic material on the car’s radiator, it helps to eliminate smoke.