千兆以太网联盟
GEA Gibabit Ethernet alliance
千兆以太网通道
GEC Giga Ethernet channel
电接口信号
electrical interface signal
港口供电系统
Power Supply System of Port
港口供配电系统
Power Supply and Distribution System in Port
机电接口模型
electromechanical interface model
千兆赫的无线电频率
A frequency of 1 000 000 000 or 1 ×109 cycles each second
通口水电工程区
construction site of the Tongkou hydropower statio
外接电源扦口
external power receptacle