With low pressure loss and simple repair, the annular-type centrifugal flowmeter, being without rotary element installed in it, can not be stuck and block up.
作为新产品的环式离心流量计因结构内部无转动部件，故不易卡、堵，压力损失小，维修工作量少。
2
To study the influence of rotary inertia on gear flowmeter natural frequency, keep damping and leakage coefficient as constant.