分干管 meaning in Chinese

submain

The new constant pressure controller designed in this paper controls the terminals of branch irrigation system
此次设计的是一种新型的恒压喷灌控制器，它是对喷灌系统分干管末端进行控制。
The new constant pressure controlle r for irrigation system is used to control the terminal pressure ( at the terminals of the branch pipes ) , and it can more effectively convert the frequencies of the moters . thus energy can be saved
新型的恒压喷灌控制器采用的是末端控制（即分干管末端），这种控制方式可使喷头获得更好的喷水压力，并且使电机可进行更有效的调速，从而获得更好的节能效果。