Any device that combines incoming message into a single message( concentration) or extracts individual messages from the data sent in a single transmission sequence( deconcentration). 把送来的多个报文合并成为单个报文(中)或者从单个传输序列所发送的数据中提取各单独报文(散)装置。
Deconcentration \De*con`cen*tra"tion\, n. Act of deconcentrating. [R.]