英语语法分析

The hydrometric pendulum is sometimes used to determine flow velocities in open channels.

测流速的摆锤有时用于确定明渠中的流速。

This article elaborates signal transmission, selection of insulators for hydrometric cableway of Yifeng hydrological station in Jiangxi.

阐述了江西省宜丰水文站在水文缆道信号传输方面，绝缘子选择上的一些做法。

As a kind of linear motor, linear force motor usually is used as an actuator in positioning or switching control system for hydrometric servo valves and so on.

直线力电机是直线电机的一种，主要是作为执行器应用于电液伺服阀等位置伺服或开关量控制系统。