“shadow photometer”的概念、定义、翻译、参考文献-科学参考

单词	shadow photometer
释义	shadow photometer [`shad·ō fō`täm·ǝd·ǝr] ^ENGINEERING A simple photometer in which a rod is placed in front of a screen and two light sources to be compared are adjusted in position until their shadows touch and are equal in intensity.
随便看	urstromthal Urticaceae Urticales urticaria Urysohn lemma Urysohn theorem usable usable iron ore usable life usable rate of fire U Sagittae use-dilution test user user-defined function user-defined type user exit user friendly user group user interface user mode user program user-programmable memory user-to-user service user-written code U-shaped abutment

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