| 单词 | communications control unit | 
| 释义 | communications control unit [kǝ´myü·nǝ`kā·shǝnz kǝn`trōl ´yü·nǝt]  COMMUNICATIONS A device that handles data transmission between components of a communications network, and performs related functions such as multiplexing, message switching, and code conversion. Abbreviated CCU.  | 
	
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