| 单词 | isdn |
| 释义 | > as lemmasISDN ISDN n. = integrated services digital network n. at integrated adj. Additions. ΘΚΠ society > communication > telecommunication > [adjective] > types of link or network ship-to-ship1904 two-way1922 ship-to-shore1923 multichannel1930 multipath1936 multi-channelled1950 store-and-forward1963 terrestrial1968 ISDN1974 society > communication > telecommunication > [noun] > link or network > types of star1924 star network1924 data link1953 downlink1963 uplink1968 integrated services digital network1974 ISDN1974 UMTS1990 1974 Internat. Conf. Communications (Inst. Electr. & Electronic Engineers) 33 e-1 An integrated services digital network (ISDN) is a network in which the various services such as telephony, data and telex use the same switching and transmission facilities. 1986 E. L. Scace in T. C. Bartee Digital Communications iii. 87 One part evolution, one part revolution, and one part philosophy, ISDNs represent a unique historical development. 1993 Daily Tel. 24 Feb. 30/7 Now..network operators worldwide have in place national ISDN services..which are simple to use, simple to install and simple to run. 1993 Daily Tel. 24 Feb. 30/8 Britain's ISDN network is already connected to 12 other countries. < as lemmas |
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