| 释义 |
reflecˈtivity
[f. reflective a. + -ity.]
= reflectiveness; spec. (a) the degree to which anything incident on a surface is reflected; (b) the degree to which a surface reflects what is incident upon it.
1881Mrs. E. Lynn Linton My Love II. iii. 55 The value of the image is its comprehensiveness,..the facetted quality of its reflectivity. 1916Physical Rev. VIII. 152 The reflectivity of metal atoms striking surfaces of the same metals at room temperature (or lower) is zero. 1936Discovery Aug. 237/1 Steel mirrors of high reflectivity. 1946[see aluminize v. 2]. 1966McGraw-Hill Encycl. Sci. & Technol. XI. 395/1 Typical curves of the reflectivity of the polarized components versus angle of incidence are given in Fig. 7. 1974Mineral. Abstr. XXV. 267/1 Reflectivities of pyrite..and sphalerite were measured with POH microscope and SPS-1 microscope photometer. |