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1·A flow meter in the potable water line feeds information to the control system which controls the pump speed to control ratio.

饮用水管道中的流量计向控制系统传送信息，控制系统控制泵的速度以控制比率。

2·Combing capacitance-type level meter and ratio instrument module of DCS controlling system level determination of product caustic soda ground bunker was successfully innovated.

介绍了利用电容液位计和DCS控制系统的比值仪表模块的结合，成功地对成品碱地槽液位测量实施改进的工作内容。

3·The test indicates that compared with single-meter based traffic flow measurement system, the system reduces the packet loss ratio obviously and enhances the measurement veracity.

测试表明，与基于单采集器的被动网络流量测量系统相比，该系统明显减少了采集器端的丢包率，提高了系统测量的准确性。

4·PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.

采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试，并将其结果进行对比。