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invisibility 音标拼音: [ɪnv,ɪzəb'ɪləti]

n. 看不见,难看见,看不见的东西

看不见,难看见,看不见的东西

WordNet (r) 3.0 (2006) (WordNet)

invisibility
n 1: the quality of not being perceivable by the eye [synonym:
{invisibility}, {invisibleness}] [ant: {visibility},
{visibleness}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Invisibility \In*vis`i*bil"i*ty\, n.; pl. {Invisibilities}. [L.
invisibilitas: cf. F. invisibilit['e].]
The state or quality of being invisible; also, that which is
invisible. "Atoms and invisibilities." --Landor.
[1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0 (moby-thesaurus)

30 Moby Thesaurus words for "invisibility":
burial, burying, clouding, concealedness, concealment, covering,
covering up, covertness, darkening, deception, evanescence,
hiddenness, hiding, impalpability, imperceptibility,
imponderability, intangibility, interment, masking, mystification,
obscuration, obscurement, occultation, putting away, screening,
secrecy, secretion, subterfuge, tenuousness, uncommunicativeness

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单词	字典	翻译
invisibility	查看　invisibility　在百度字典中的解释	百度英翻中〔查看〕
invisibility	查看　invisibility　在Google字典中的解释	Google英翻中〔查看〕
invisibility	查看　invisibility　在Yahoo字典中的解释	Yahoo英翻中〔查看〕

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Ejection Fraction Heart Failure Measurement
Ejection fraction (EF) shows how much blood the left ventricle pumps out with each contraction EF is measured as a percentage An ejection fraction of 60% means that 60% of the blood in the left ventricle is pushed out with each heartbeat A normal heart’s ejection fraction is between 55% and 70%
Ejection Fraction: What It Is, Types and Normal Range
Ejection fraction measures the amount of blood the left ventricle of the heart pumps out to your body with each heartbeat A healthy heart has an ejection fraction of 50% to 70%
Ejection Fraction: Definition, Measurement, Causes, and Treatment - WebMD
Ejection fraction (EF) measures the amount of blood pumped out of your heart's lower chambers, or ventricles It's the percentage of blood that leaves your ventricle when your heart contracts
Ejection fraction: An important heart test - Mayo Clinic
No matter how forceful the contraction, the heart can never pump all the blood out of a ventricle The term "ejection fraction" is the amount of blood — as a percentage — that's pumped out of a filled ventricle with each heartbeat The ejection fraction is usually measured only in the left ventricle
Left Ventricular Ejection Fraction - PubMed
LVEF is the fraction of blood ejected from the left ventricle during systole (stroke volume [SV]) relative to the volume of blood present at the end of diastole (end-diastolic volume [EDV])
What Is LVEF in Cardiology? Meaning and Normal Range
LVEF stands for left ventricular ejection fraction, and it measures how well the main pumping chamber of your heart pushes blood out with each beat Expressed as a percentage, it tells cardiologists what fraction of the blood sitting in that chamber actually gets ejected into the body
Ejection Fraction Explained: Know Its Normal Range And What It Means . . .
Ejection fraction (EF) is a measurement, expressed as a percentage, of the quantity of blood the left ventricle pumps out with each contraction
What Does an Abnormal Ejection Fraction Mean? - Verywell Health
Left ventricular ejection fraction (LVEF): This is the most commonly measured EF It shows how much oxygen-rich blood is pumped from the left ventricle to the rest of the body LVEF helps determine the severity of conditions like heart failure, cardiomyopathy, or coronary artery disease

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