尺寸和材料的特性导致了轮辋是一个良好的高频声源，轮辋也被认为是曲线尖啸噪声的主要来源。
The wheel web, by virtue of its geometry and material characteristics, is a good emitter of high-frequency sound, and is believed to be the primary source of curve squeal noise.
合理配置噪声源也可以减少噪声的污染。
The rational dispose of the noise source can also reduce the noise pollution.
本文对钻井生产的噪声源进行了分析，同时也对正常钻井作业时的主要岗位点的噪声进行了调查。
The noise sources of drilling production are analysed. The noise from main station of normal drilling work is also investigated in this paper.
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