常见例句双语例句In dealing with the communication between host computer and CNC system in FMS, EIA RS-232C serial interface and HDLC data link are used.本文讨论用EIA RS-232C串行接口作为通讯线路，并选用国际链路层通讯协议HDLC进行FMS中主机与CNC系统的通讯。 返回 host link system