... 机器 machine; machinery; engine 低噪声机器 low noise machine 鼓声 tum 隆隆鼓声 the roll of drums; 远处的鼓声 a distant drum ...
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The seat vibration level is important for evaluation of the machinery quality in the research and development(R&D) of the low noise machine.
机脚振动级是评价机械设备振动特性的一项重要指标，是低噪声机械设备研制和验收的重要检测项目。
Hydraulic performance of advanced machine, high efficiency, low noise operation.
水力性能先进，整机效率高，运转噪音低。
Scroll machine which possess characteristics of high efficiency, small bulk, light weight, low noise, simple structure and working smoothly etc, is used in supercharged vehicle engine.
涡旋机械由于其结构简单、效率高、体积小、噪声低、运转平稳等特点被应用于车用增压器技术中。
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