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论述了专门用于工矿企业自然管道（ 明渠） 污水排放量计量的一种新型明渠流量计量仪表———ＬＭＣ 型超声波明渠流量计。介绍了该流量计的功能与技术指标、仪表系统构成及测量原理，并给出了程序设计的部分流程图。
This paper discusses a new type of open channel flowmeter-LMC-type ultrasonic open channel flowmeter specially designed for the measurement of sewage discharge from the natural pipe (open channel) of industrial and mining enterprises. Introduced the function and technical index of this flowmeter, the instrument system constitution and the measurement principle, and gave the partial flow chart of the program design.