闸

• Jrz series thyristor motor soft startup modules
  Jrz系列晶闸管电机软启动组件
• Tunnelling machines - air locks - safety requirements
  隧道掘进机械.气闸.安全性要求
• Portcullis - effectual protection in emergency
  吊闸行之有效的紧急保护。
• Beveled gate provides positive shearing action
  斜面闸板提供刚性剪切作用。
• Control system of switch automatic operation based on at89c
  51的刀闸自动操作控制系统
• Help offered to open door gate and repair air - con
  协助开启铁闸及修理冷气机
• Called the brakeman , slamming open the door
  司闸喊道，呼一声打开了车门。
• This could slide down to shut off the gateway
  吊闸可以放下来，截断通道。
• Economic analysis on river - mouth gate in huangpu river
  黄浦江河口建闸工程经济效益分析
• Have bop ram opened up for internal inspection
  打开防喷器闸板进行内部检查