mechanical noise

measurement on the sound power level for mechanical noise

机器噪声声功率级的简测方法的研究

The flour mill noise origin mainly has the mechanical noise, the material and the machinery hit and the friction and the air current noise.

面粉厂噪声的来源主要有机械噪声、物料与机械的撞击和摩擦及气流噪声。

Direct drive drum washing machine has advantages such as small mechanical noise, low system failure rate, low cost and small space occupation.

直驱式滚筒洗衣机具有机械噪声小、系统故障率低、成本低及占用空间小等优势，加之滚筒洗衣机强大的个性化设计和较高的节能性能，必将成为未来市场上的主流产品。

A Revised MUSIC Method for Fixing Space Position of Mechanical Noise Sources

用修正的MUSIC法确定机器多噪声源的空间位置