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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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  • Injection (medicine) - Wikipedia
    Injections are classified in multiple ways, including the type of tissue being injected into, the location in the body the injection is designed to produce effects, and the duration of the effects
  • Injection Types Sites: What you need to know - Drugs. com
    Learn about the common types of injection and where on the body they should be given Plus steps for giving injections at home and overcoming fear of needles
  • Types of injections: Uses, sites, and what to expect
    What are the different types of injection? Read on to learn more about the different types, including their uses and possible injection sites
  • Wegovy Pills vs. Injection: 5 Key Differences - GoodRx
    The weight loss injection Wegovy (semaglutide) is now available as a daily pill How do the Wegovy pills compare to injections? See differences in dosage and more
  • Epinephrine (injection route) - Side effects dosage
    Description Epinephrine injection is used for emergency treatment of severe allergic reactions (including anaphylaxis) to insect bites or stings, medicines, foods, or other substances It is also used to treat anaphylaxis caused by unknown substances or triggered by exercise Epinephrine injection is also used to increase blood pressure in adult patients with hypotension (low blood pressure
  • Types of Injection: Understanding Uses and Injection Sites
    Types of Injection: Learn about intramuscular, subcutaneous, intravenous, and intradermal injections Explore injection sites and methods
  • Injection | definition of injection by Medical dictionary
    Immunizing substances, or inoculations, are generally given by injection Some medicines cannot be given by mouth because chemical action of the enzymes and digestive fluids would change or reduce their effectiveness, or because they would be removed from the body too quickly to have any effect
  • Injection - healthencyclopedia. org
    An injection is a medical procedure that involves administering a liquid substance, such as a medication, vaccine, or therapeutic agent, directly into the body using a needle and syringe This comprehensive guide will explore the various types, uses, and what to expect when receiving an injection
  • Vaccine Administration | Vaccines Immunizations | CDC
    Needles and syringes used for vaccine injections must be sterile and disposable A separate needle and syringe should be used for each injection Changing needles between drawing vaccine from a vial and injecting it into a recipient is not necessary unless the needle has been damaged or contaminated 11
  • Platelet-Rich Plasma (PRP) Injections | Johns Hopkins Medicine
    Platelet-rich plasma (PRP) injections are gaining popularity for a variety of conditions, from sports injuries to hair loss The treatment uses a patient’s own blood cells to accelerate healing in a specific area





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