attenuation
n. 衰减；稀薄
近义词：diminution，weakening，reduction，decrease，lessening，dilution，tempering，mitigation，lightening，thinning，assuagement，fading，
英英释义
Noun
- weakening in force or intensity;
"attenuation in the volume of the sound"
- the property of something that has been weakened or reduced in thickness or density
例句
用作名词(n.)
- Attenuation of light is in the form of absorption.光是以吸收的形式衰减。
- This member represents an attenuation constant.此成员表示一个衰减常数。