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- noise level measurement 噪声电平测量
- Structure of very low noise level. 低噪音结构。
- Noise and Vibration Level Measuring of Lin. 交通噪音、振动及车流量测定。
- Noise level shall comply with the EU guidelines. 噪音级别应符合欧盟的指导方针。
- Level measurement to the accurate spare part. 对精密零部件的平行、平面测量。
- The noise level of air supply unit should be marked on the drawing. 机组要有噪声要求。
- Liquid level gauges shall be used for local level measurement. 液体液位计应用于现场液位测量。
- Airflow system maximizes air volume at minimum noise level. 空气动力系统使加热器在最大出风量时将噪音降到最低。
- The quality of urban living has been damaged by excessive noise levels. 城市生活的质量已被过度的噪音所破坏。
- Regulation on noise levels on board sea-going ship. 海洋船舶噪声级规定。
- The ultimate noise levels are the same. 最终的噪音水平是一样的。
- Latest generation speed reducing gear pair (high efficiency, low noise level). 最新一代减速齿轮对(高效,低噪音)
- Noise level is higher, everyday concessional working hours is shorter. 噪声级越高,天天容许工作时间越短。
- There are always lots of scattered stations needed to be measurement during the process of penstock level measurement. 摘要水渠水位测量具有测点多而分散的特点;
- And LA90,5 min level measured during class is 50.5 dB(A). 课堂上实测室内的LA90;5 min达到50.;5 dB(A)
- The method of level measurement based on digital image processing technology and its application in automatic pouring production line are introduced. 介绍一种基于数字图象处理技术的液位测量方法及其在自动浇注生产线中的应用。
- The wireless technology used in capacitance tank level measurement Ian avoid the influence of the distributed capacitance of tr... 使用无线接入技术可以克服电缆分布电容的影响,实现无缆传输,使测量准确可靠。
- It is forbidden to manufacture,sell or import automobiles that emit noise beyond the limits set on noise level. 禁止制造、销售或者进口超过规定的噪声限值的汽车。
- The accelerometers are set on the bogie frame and under the frame of the car body, and sound meters installed for the measurement of noise levels inside and outside the car. 过载信号器被设置在来路不明的飞机框架和在汽车身体的框架之下, 和酣然的米被安装为噪声级的测量在和在汽车之外里面。
- The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band. 声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。