door operator

基本解释

Standard for Door, Drapery, Gate, Louver, and Window Operators and Systems.
门，帷幕闸门，百叶高，高操纵器何系统标准。
Who will be the first one to open the door to this era, The Cable operators Carriers, or the real estate developers?
但是，谁将最先打开光纤到户的大门呢？是广电部门，还是电信运营商，或者房地产商？
Two form "C" follower relays and two form "C" delayed momentary relays are provided for activation of automatic door operators.
两个“C”形状跟随继电器和两个“C”形状延时继电器能激活自动门操作器。
www.21csp.com.cn

Activities that once served as loss-leaders to get gamblers in the front door and up to the blackjack tables now produce over half of all revenue at many large casino operators.
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This leaves the door wide open for other options for the consumer to play games on the TV, but also for operators who are looking for new revenue streams.
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