According to the motive conditions of the open ditch, we invented a flowmeter, which isn t afraid of sands and is difficult to corrupt and wear and tear.

• 根据明渠水流的动力特性,提出一种具有不怕泥沙干扰,耐腐蚀,无磨损,便于推广应用的流量计,该仪表具有断电数据保持,系数键盘预置等特点。