体育运动中有好几种使用了内燃机,其中汽车竞速赛在我国尚未开展,飞机跳伞在高空进行,因而暂不存在噪声污染问题;其它项目如摩托和摩托艇(包括滑水)以及航空、航海、车辆模型等,均采用二冲程内燃机。这是相当突出的噪声源。噪声对人体健康有不良影响,扰乱正常生理过程,影响运动员发挥技能。在环境保护日益受到重视的现代社会里,噪声将成为阻碍运动开展的一大因素。 There are several types of sports using internal combustion engines, including automobile racing in our country has not yet carried out, aircraft parachuting at high altitude, so there is no noise pollution problems; other projects such as motorcycles and motorboats (including water skiing) and aviation, Navigation, vehicle models, etc., are used two-stroke internal combustion engine. This is a very prominent source of noise. Noise has adverse effects on human health, disturbing the normal physiological processes, affecting athletes to play their skills. In a modern society where environmental protection is gaining more prominence, noise will become a major factor impeding the movement.