DC solenoid for valve control是什么意思

用法例句

Owing to irrational design of mechanical brake circuits,the solenoid valve coils of turbine braking burn out very often at Guiping Shipping Hub Hydropower Station.

　桂平航运枢纽水电厂机械刹车回路由于设计不合理,经常烧毁刹车电磁阀线圈,致使水电厂自动机械刹车一直无法投入使用,长期采用人工开、关闸阀的形式投、退刹车,影响了水电厂的自动化水平和安全运行。