闭路发讯

【电】 closed-circuit signaling

闭路的英语翻译：

【计】 closed path
【化】 closed circuit

发的英语翻译：

hair; issue; send out; deliver; utter; develop; discover
【医】 capilli; capillus; crinis; crinis capitis; hair; Mit.; pili; pilo-
pilus; thrix; trich-; tricho-

讯的英语翻译：

dispatch; interrogate; message