作者通过圣维南方程组的有限差分数值解并使用比例控制方式，编写出计算机程序，实现了自动上游控制灌溉渠道系统的计算机模拟。
Based on the numerical solution of Saint Venant Equations and proportional control mode, the author established a computer program for simulating automatic upstream control irrigation canal system.
分别用淡水和海水进行灌溉，并且用电脑程序配置八个级别的盐水。
Separate pipes pumped fresh and sea water, and a computer program created water with eight levels of salinity.
使用PLC可编程序控制器取代传统的继电保护控制，以满足目前日益繁重的灌溉任务；
To satisfy heavier irrigation tasks for the time being, the system adopts PLC programmable controller to take place of traditional relay protection of power system.
应用推荐