injection 音标拼音: [ɪndʒ'ɛkʃən]
n . 注射;注射剂,针剂
注射;注射剂,针剂
injection 注入
injection 注入
injection n 1 :
the forceful insertion of a substance under pressure 2 :
any solution that is injected (
as into the skin ) [
synonym :
{
injection }, {
injectant }]
3 :
the act of putting a liquid into the body by means of a syringe ; "
the nurse gave him a flu shot " [
synonym : {
injection },
{
shot }]
Injection \
In *
jec "
tion \,
n . [
L .
injectio :
cf .
F .
injection .]
1 .
The act of injecting or throwing in ; --
applied particularly to the forcible insertion of a liquid or gas ,
by means of a syringe ,
pump ,
etc .
[
1913 Webster ]
2 .
That which is injected ;
especially ,
a liquid inserted thrown into a cavity of the body by a syringe or pipe ;
a clyster ;
an enema . --
Mayne .
[
1913 Webster ]
3 . (
Anat .)
(
a )
The act or process of filling vessels ,
cavities ,
or tissues with a fluid or other substance .
(
b )
A specimen prepared by injection .
[
1913 Webster ]
4 . (
Steam Eng .)
(
a )
The act of throwing cold water into a condenser to produce a vacuum .
(
b )
The cold water thrown into a condenser .
[
1913 Webster ]
{
Injection cock },
or {
Injection valve } (
Steam Eng .),
the cock or valve through which cold water is admitted into a condenser .
{
Injection condenser }.
See under {
Condenser }.
{
Injection pipe },
the pipe through which cold water is through into the condenser of a steam engine .
{
fuel injection },
a method of inserting fuel into internal -
combustion engines by directly forcing the liquid fuel into the combustion chamber at an appropriate point in the piston cycle ;
in contrast to {
carburetion },
in which an air -
fuel mixture is drawn in by the downward stroke of the piston .
[
1913 Webster PJC ]
137 Moby Thesaurus words for "
injection ":
Earth insertion ,
LEM ,
LM ,
antitoxin ,
apogee ,
aside ,
attitude -
control rocket ,
bag ,
ballistic capsule ,
bang ,
booster ,
booster dose ,
booster shot ,
brewing ,
burn ,
capsule ,
deck ,
deep -
space ship ,
docking ,
docking maneuver ,
dose ,
draft ,
drench ,
drenching ,
dropping ,
drug packet ,
ducking ,
dunking ,
embedment ,
encroachment ,
entrance ,
entrenchment ,
episode ,
ferry rocket ,
fix ,
fuel ship ,
graft ,
grafting ,
hit ,
hypodermic ,
hypodermic injection ,
imbruement ,
imbuement ,
impaction ,
impactment ,
impingement ,
implantation ,
imposition ,
impregnation ,
incursion ,
infiltration ,
infix ,
infixion ,
influx ,
infringement ,
infusion ,
inoculation ,
inroad ,
insert ,
insertion ,
insinuation ,
intercalation ,
interference ,
interjection ,
interlineation ,
interlocution ,
interloping ,
interpolation ,
interposition ,
interposure ,
interruption ,
intervention ,
introduction ,
intromission ,
intrusion ,
invasion ,
irruption ,
jet injection ,
leaching ,
lixiviation ,
lunar excursion module ,
lunar module ,
maceration ,
mainlining ,
manned rocket ,
module ,
moon ship ,
multistage rocket ,
narcotic injection ,
narcotic shot ,
obiter dictum ,
obtrusion ,
orbit ,
overdose ,
parenthesis ,
parking orbit ,
penetration ,
percolation ,
perfusion ,
perigee ,
permeation ,
popping ,
portion ,
potion ,
pulping ,
reentry ,
remark ,
rocket ,
saturation ,
seething ,
shooting up ,
shot ,
shuttle rocket ,
side remark ,
skin -
popping ,
soak ,
soakage ,
soaking ,
soft landing ,
sopping ,
souse ,
sousing ,
space capsule ,
space docking ,
space rocket ,
spacecraft ,
spaceship ,
steeping ,
tessellation ,
tossing -
in ,
transplant ,
transplantation ,
trespass ,
trespassing ,
unlawful entry ,
vaccination ,
vaccine 1 .
A {function }, f : A -> B , is injective or
one -one , or is an injection , if and only if
for all a ,b in A , f (a ) = f (b ) => a = b .
I .e . no two different inputs give the same output (contrast
many -to -one ). This is sometimes called an embedding . Only
injective functions have left inverses f ' where f '(f (x )) = x ,
since if f were not an injection , there would be elements of B
for which the value of f ' was not unique . If an injective
function is also a {surjection } then is it a {bijection }.
2 . An injection function is one which takes
objects of type T and returns objects of type C (T ) where C is
some {type constructor }. An example is
f x = (x , 0 ).
The opposite of an injection function is a {projection }
function which extracts a component of a constructed object ,
e .g .
fst (x ,y ) = x .
We say that f injects its argument into the data type and fst
projects it out .
1995 -03 -14 )
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