DC
結算卡,信用卡
結算卡,信用卡
d -
c *直流
d .
c .
*
dc 直流
DC n 1 :
the district occupied entirely by the city of Washington ;
chosen by George Washington as the site of the capital of the United States and created out of land ceded by Maryland and Virginia [
synonym : {
District of Columbia }, {
D .
C .}, {
DC }]
2 :
an electric current that flows in one direction steadily [
synonym : {
direct current }, {
DC }, {
direct electric current }]
[
ant : {
AC }, {
alternating current }, {
alternating electric current }]
electric current \
electric current \,
electrical current \
electrical current \,
the movement of electrically charged particles ,
atoms ,
or ions ,
through solids ,
liquids ,
gases ,
or free space ;
the term is usually used of relatively smooth movements of electric charge through conductors ,
whether constant or variable .
Sudden movements of charge are usually referred to by other terms ,
such as {
spark }
or {
lightning }
or {
discharge }.
In metallic conductors the electric current is usually due to movement of electrons through the metal .
The current is measured as the rate of movement of charge per unit time ,
and is counted in units of amperes .
As a formal definition ,
the direction of movement of electric current is considered as the same as the direction of movement of positive charge ,
or in a direction opposite to the movement of negative charge .
Electric current may move constantly in a single direction ,
called {
direct current } (
abbreviated {
DC }),
or may move alternately in one direction and then the opposite direction ,
called {
alternating current } (
abbreviated {
AC }).
[
PJC ]
37 Moby Thesaurus words for "
DC ":
AC ,
absorption current ,
active current ,
alternating current ,
conduction current ,
convection current ,
cycle ,
delta current ,
dielectric displacement current ,
direct current ,
displacement current ,
eddy current ,
electric current ,
electric stream ,
emission current ,
exciting current ,
free alternating current ,
galvanic current ,
high -
frequency current ,
idle current ,
induced current ,
induction current ,
ionization current ,
juice ,
low -
frequency current ,
magnetizing current ,
multiphase current ,
pulsating direct current ,
reactive current ,
rotary current ,
single -
phase alternating current ,
stray current ,
thermionic current ,
thermoelectric current ,
three -
phase alternating current ,
voltaic current ,
watt current
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