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duplex    音标拼音: [d'upl,ɛks]
双工,双工的,双向的

双工,双工的,双向的

duplex
双工; 双面列印


duplex
半双工的


duplex
部分全双工


duplex
全双工服务


duplex
半双工服务


duplex
不对称半双工

duplex
双工

duplex
adj 1: (used technically of a device or process) having two
parts; "a duplex transaction"
2: allowing communication in opposite directions simultaneously;
"duplex system"; "duplex telephony"
n 1: a house with two units sharing a common wall [synonym: {duplex
house}, {duplex}, {semidetached house}]
2: an apartment having rooms on two floors that are connected by
a staircase [synonym: {duplex apartment}, {duplex}]
v 1: change into a duplex

Duplex \Du"plex\, a. [L., fr. duo two plicare to fold. See
{Two}, and {Complex}.]
1. Double; twofold.
[1913 Webster]

2. (Computers) organized so that data may be transmitted in
two opposite directions over the same channel; -- of
communications channels, such as data transfer lines
between computers.
[PJC]

{Duplex escapement}, a peculiar kind of watch escapement, in
which the scape-wheel has two sets of teeth. See
{Escapement}.

{Duplex lathe}, one for turning off, screwing, and surfacing,
by means of two cutting tools, on opposite sides of the
piece operated upon.

{Duplex pumping engine}, a steam pump in which two steam
cylinders are placed side by side, one operating the
valves of the other.

{Duplex querela} [L., double complaint] (Eccl. Law), a
complaint in the nature of an appeal from the ordinary to
his immediate superior, as from a bishop to an archbishop.
--Mozley & W.

{Duplex telegraphy}, a system of telegraphy for sending two
messages over the same wire simultaneously.

{Duplex watch}, one with a duplex escapement.

{half duplex} (Computers)
(a) arranged so that the information may be transmitted in
both directions, but only in one direction at a time;
-- of communications channels between computers;
contrasted with {full duplex(a)}.
(b) arranged so that the information transmitted to the
remote computer also appears on the local terminal; --
of communications channels between computers;
contrasted with {full duplex(b)}.

{full duplex}, (Computers)
(a) arranged so that the information may be transmitted in
both directions simultaneously; -- of communications
channels between computers; contrasted with {half
duplex(a)}.
(b) arranged so that the information transmitted to the
remote computer does not appear on the local terminal;
-- of communications channels between computers;
contrasted with {half duplex(b)}.
[1913 Webster]


Duplex \Du"plex\, v. t. [See {Duplex}, a.] (Teleg.)
To arrange, as a telegraph line, so that two messages may be
transmitted simultaneously; to equip with a duplex
telegraphic outfit.
[Webster 1913 Suppl.]


duplex \du"plex\, n. [See {Duplex}, a.]
1. something which is duplex; -- used mostly in reference to
a living unit, such as an apartment, in a building having
two similar living units.
[PJC]

2. (Biology, Genetics) a double-stranded region in a nucleic
acid molecule. See {deoxyribonucleic acid}.
[PJC]

49 Moby Thesaurus words for "duplex":
Janus-like, ambidextrous, apartment house, bifacial, bifold,
biform, bifurcated, bilateral, binary, binate, biparous,
bipartisan, bipartite, bivalent, condominium, conduplicate,
cooperative apartment house, dichotomous, disomatous, double,
double-barreled, double-faced, duadic, dual, dualistic, duple,
duplex house, duplicate, duplicated, dyadic, flats, geminate,
geminated, high-rise apartment building, identical, matched,
second, secondary, tenement, twain, twin, twinned, two, two-faced,
two-level, two-ply, two-sided, two-story, twofold

Used to describe a communications channel
that can carry signals in both directions, in contrast to a
{simplex} channel which only ever carries a signal in one
direction.

If signals can only flow in one direction at a time the
communications is "{half-duplex}", like a single-lane road with
traffic lights at each end. Walkie-talkies with a
"press-to-talk" button provide half-duplex communications.

If signals can flow in both directions simultaneously the
communications is "{full-duplex}", like a normal two-lane
road. Telephones provide full-duplex communications.

The term "duplex" was first used in wireless, telegraph, and
telephone communications. Nearly all communications circuits
used by computers are two-way, so the term is seldom used.

{(http://cit.ac.nz/smac/dc100www/dc_014.htm)}.

(2001-07-21)


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