“lumen”的概念、定义、翻译、参考文献-科学参考

单词	lumen
释义	lumen [`lü·mǝn] ^ANATOMY The interior space within a tubular structure, such as within a blood vessel, a duct, or the intestine. ^OPTICS The unit of luminous flux, equal to the luminous flux emitted within a unit solid angle (1 steradian) from a point source having a uniform intensity of 1 candela, or to the luminous flux received on a unit surface, all points of which are at a unit distance from such a source. Symbolized lm. ^{SCIENCE AND TECHNOLOGY} The space within a tube.
随便看	single-layer bit single-layer solenoid single-length single lens single-loop feedback single-loop servomechanism single packing single-pass weld single-path system single-perforated grain single-phase single-phase circuit single-phase flow single-phase meter single-phase motor single-phase rectifier single-photon-emission computed tomography single-piece milling single-point grounding single-point tool single-polarity pulse single-polarity pulse-amplitude modulation single-pole double-throw single-pole single-throw single-precision number

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