传统的浮子式机械流量计故障率高、坐层困难，所取资料可信度差。

Conventional float type mechanical flowmeter has the disadvantages of high failure rate, difficult set, poor believability of the data measured.

youdao

传统的浮子式机械流量计故障率高、坐层困难，所取资料可信度差。

Conventional float type mechanical flowmeter has the disadvantages of high failure rate, difficult set, poor believability of the data measured.

youdao