telegraph 音标拼音: [t'ɛləgr
, æf]
n . 电报,电报机
vi . 打电报
vt . 打电报给,电汇,流露,显示
电报,电报机打电报打电报给,电汇,流露,显示
telegraph 电报
TG telegraph 电报
telegraph n 1 :
apparatus used to communicate at a distance over a wire (
usually in Morse code ) [
synonym : {
telegraph }, {
telegraphy }]
v 1 :
send cables ,
wires ,
or telegrams [
synonym : {
cable },
{
telegraph }, {
wire }]
Telegraph \
Tel "
e *
graph \,
n . [
Gr . ?
far ,
far off (
cf .
Lith .
toli )
-
graph :
cf .
F .
t ['
e ]
l ['
e ]
graphe .
See {
Graphic }.]
An apparatus ,
or a process ,
for communicating intelligence rapidly between distant points ,
especially by means of preconcerted visible or audible signals representing words or ideas ,
or by means of words and signs ,
transmitted by electrical action .
[
1913 Webster ]
Note :
The instruments used are classed as indicator ,
type -
printing ,
symbol -
printing ,
or chemical -
printing telegraphs ,
according as the intelligence is given by the movements of a pointer or indicator ,
as in Cooke &
Wheatstone '
s (
the form commonly used in England ),
or by impressing ,
on a fillet of paper ,
letters from types ,
as in House '
s and Hughe '
s ,
or dots and marks from a sharp point moved by a magnet ,
as in Morse '
s ,
or symbols produced by electro -
chemical action ,
as in Bain '
s .
In the offices in the United States the recording instrument is now little used ,
the receiving operator reading by ear the combinations of long and short intervals of sound produced by the armature of an electro -
magnet as it is put in motion by the opening and breaking of the circuit ,
which motion ,
in registering instruments ,
traces upon a ribbon of paper the lines and dots used to represent the letters of the alphabet .
See Illustration in Appendix ,
and {
Morse code }.
[
1913 Webster ]
Note :
In 1837 ,
Samuel F .
B .
Morse ,
an American artist ,
devised a working electric telegraph ,
based on a rough knowledge of electrical circuits ,
electromagnetic induction coils ,
and a scheme to encode alphabetic letters .
He and his collaborators and backers campaigned for years before persuading the federal government to fund a demonstration .
Finally ,
on May 24 ,
1844 ,
they sent the first official long -
distance telegraphic message in Morse code , "
What hath God wrought ,"
through a copper wire strung between Washington ,
D .
C .,
to Baltimore ,
Maryland .
The phrase was taken from the Bible ,
Numbers 23 :
23 .
It had been suggested to Morse by Annie Ellworth ,
the young daughter of a friend . --
Library of Congress ,
American Memories series (
http ://
memory .
loc .
gov /
ammem /
today /
may24 .
html ).
[
PJC ]
{
Acoustic telegraph }.
See under {
Acoustic }.
{
Dial telegraph },
a telegraph in which letters of the alphabet and numbers or other symbols are placed upon the border of a circular dial plate at each station ,
the apparatus being so arranged that the needle or index of the dial at the receiving station accurately copies the movements of that at the sending station .
{
Electric telegraph },
or {
Electro -
magnetic telegraph },
a telegraph in which an operator at one station causes words or signs to be made at another by means of a current of electricity ,
generated by a battery and transmitted over an intervening wire .
{
Facsimile telegraph }.
See under {
Facsimile }.
{
Indicator telegraph }.
See under {
Indicator }.
{
Pan -
telegraph },
an electric telegraph by means of which a drawing or writing ,
as an autographic message ,
may be exactly reproduced at a distant station .
{
Printing telegraph },
an electric telegraph which automatically prints the message as it is received at a distant station ,
in letters ,
not signs .
{
Signal telegraph },
a telegraph in which preconcerted signals ,
made by a machine ,
or otherwise ,
at one station ,
are seen or heard and interpreted at another ;
a semaphore .
{
Submarine telegraph cable },
a telegraph cable laid under water to connect stations separated by a body of water .
{
Telegraph cable },
a telegraphic cable consisting of several conducting wires ,
inclosed by an insulating and protecting material ,
so as to bring the wires into compact compass for use on poles ,
or to form a strong cable impervious to water ,
to be laid under ground ,
as in a town or city ,
or under water ,
as in the ocean .
[
1913 Webster ]
Telegraph \
Tel "
e *
graph \,
v .
t . [
imp . &
p .
p . {
Telegraphed };
p .
pr . &
vb .
n . {
Telegraphing }.] [
F .
t ['
e ]
l ['
e ]
graphier .]
To convey or announce by telegraph .
[
1913 Webster ]
21 Moby Thesaurus words for "
telegraph ":
Teletype ,
cable ,
cablegram ,
day letter ,
facsimile telegraph ,
fast telegram ,
flash ,
heliograph ,
multiplex ,
night letter ,
quadruplex ,
radio ,
radiogram ,
radiotelegraph ,
semaphore telegraph ,
send a wire ,
sign off ,
sign on ,
telegram ,
telex ,
wire
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