front door operation 前门交易
air door operation 气门操作
door operation ram 反推门作动
automatic door operation 自动开关车门
powered door operation 动力开关车门
pneumatic door operation 车门气动操纵
In the mode of operation, the user can choose flashlight door operation or remote control.
在操作方式上,用户可选择手电门操作或无线遥控。
By use of VVVF technology to directly control elevator door operation simplified the mechanical structure of elevator door device with low noise in door closing and leveling in exact position.
采用VVVF技术对电梯开门机直接拖动,使电梯门机装置机械结构简化,关闭时噪声低,且可靠到位。
Western donors had hoped that international cyclone relief would crack open the door to broader co-operation on aid, and perhaps a dash of glasnost. There is little sign that it did.
西方的捐赠者希望,国际上对热带风暴的救灾物资能使得救援方面的合作更为广阔,或许能使社会问题得以公开讨论,但事与愿违。
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