solenoid [ˈsoʊlənɔɪd]

例句:

• The invention of the solenoid provided immediate concrete evidence of this idea.
  螺旋管线圈的发明为这种看法直接提供了具体证据.
  
• When the engine is running, the solenoid is connected to the battery.
  当发动机运转时, 电磁开关与蓄电池接通.
  
• The electrical section contains the solid - state proportional temperature controllers and solenoid valves.
  电子控制室内有固体线路的比例温度控制器和电磁阀.