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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 Types Sites: What you need to know - Drugs. com
    Injections are used to give a wide variety of different medications, such as insulin, vaccines and Botox (onabotulinumtoxinA), but not all injections are the same Read on to learn more about the four most common types of injection and where on the body they should be given
  • How To Give Yourself a Subcutaneous Injection - Cleveland Clinic Health . . .
    What is a subcutaneous injection? A subcutaneous injection uses a short needle to inject a mediation into the fatty tissue layer between your skin and muscle — or right under your skin Typically, medication delivered this way is absorbed by your body slowly, around 24 hours after the injection
  • Safe Injection Practices and Your Health | Injection Safety | CDC
    Understanding safe injection practices can protect you from harm The reuse of needles or syringes and the misuse of medication vials are unsafe injection practices Safe injection practices are actions healthcare providers should follow when performing medical injections
  • Intramuscular Injection: Sites, Techniques, and Tips - Simple Nursing
    Learn how to give an intramuscular injection safely and effectively Explore key injection sites, needle sizes, and step-by-step techniques for proper administration
  • What Are the 4 Injection Sites? - MedicineNet
    The four main intramuscular injection sites are the upper arm, thigh, buttocks, and hip However, the best location on the body to administer an injection depends on several factors, including the drug being administered, the condition being treated, how quickly or slowly the medication takes effect, and the type of injection being administered
  • Injection | definition of injection by Medical . . . - 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
  • Types of Injection: Understanding Uses and Injection Sites
    Types of Injection: Learn about intramuscular, subcutaneous, intravenous, and intradermal injections Explore injection sites and methods
  • Best practices for injection - WHO Best Practices for Injections and . . .
    This chapter assimilates the best practices for delivering injections in health-care and related facilities It is based on a range of evidence and expands the scope of the WHO publication Best infection control practices for intradermal, subcutaneous, and intramuscular needle injection (7)
  • FDA approves twice-a-year injection for HIV prevention - CNN
    Last year, Gilead Sciences released data from the PURPOSE 2 trial that showed 99 9% of the participants who received an injection of lenacapavir twice a year for HIV prevention did not become
  • 5 Types of Injections for Knee Joint Pain Relief - Verywell Health
    Several types of injections are used to relieve knee pain symptoms, such as steroid injections, hyaluronic acid (HA), platelet-rich plasma (PRP), and regenerative therapies Knee injections for pain can be a practical option for people who do not respond to pain management drugs and for people who want to treat knee pain without surgery





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