“bench photometer”的概念、定义、翻译、参考文献-科学参考

单词	bench photometer
释义	bench photometer [`bench fǝ`täm·ǝd·ǝr] ^ENGINEERING A device which uses an optical bench with the two light sources to be compared mounted one at each end; the comparison between the two illuminations is made by a device moved along the bench until matching brightnesses appear.
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