- A connection that is established and maintained on demand between two or more data stations in order to allow the exclusive use of a data circuit until the connection is released.; 根據(jù)兩個(gè)或多個(gè)數(shù)據(jù)站的請(qǐng)求,在它們之間建立并保持的一種連接。目的是在連接釋放之前 使這些站能獨(dú)占地使用該數(shù)據(jù)線路。
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