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随着工业的发展,大量固体废物和垃圾填满坑洼沟渠,工业废水充斥了河流湖泊,成千上万的烟囱冒出的烟雾和亿万辆汽车排出的废气污染了我们所呼吸的空气。但是工业发展中比造成污染的废物对人类更危险更凶恶的敌人就是噪声。噪声,从物理性质上看,是由声源作无规则和非周期性振动所产生的,听起来有嘈杂、刺耳的感觉,但从环保角度来看,则主要考虑对人的生理和心理状态的影响。英国噪声问题委员会给噪声下的定义是“不希望发生的声音。”现在噪声已列为国际
As industry evolves, large amounts of solid waste and rubbish fill potholes, industrial wastes flood rivers and lakes, smoke from thousands of chimneys and exhaust from billions of cars pollute the air we breathe. But more fierce enemies of industrial development than pollution-causing wastes are more dangerous to humans than noise. Noise from the physical point of view, is caused by the sound source for irregular and non-periodic vibration, it sounds noisy, harsh feeling, but from an environmental point of view, the main consideration of human physiological and psychological state Impact. The definition of noise by the British Council on Noise is “unwanted sounds.” Noise is now listed internationally