“transmissivity”的英文意思_释义_用法

单词

transmissivity

释义

transmissivity Physics.|trɑːnsmɪˈsɪvɪtɪ, træns-, -nz-|
[f. transmissive a. + -ity.]
The degree to which a medium allows electromagnetic radiation to pass through it.
1913Electr. World LXII. 426/2 The connection between cloudiness and transmissivity.1928Proc. R. Soc. A. CXXII. 314 The transmissivity of the telescope could then be calculated.1946Nature 21 Sept. 422/2 The optical efficiency, that is, the sum of the reflectivity and transmissivity, expressed as a percentage of the incident light intensity, is practically 100 for the interference films, owing to the negligible absorption.1971Sci. Amer. Sept. 89/1 The flux of solar radiation received at the ground is highly variable..because of the variable transmissivity of the atmosphere and the changing degree of cloudiness.

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