unit of luminosity, 1897, coined 1894 by French physicist André-Eugène Blondel (1863-1938) from Latin lumen "light," related to lucere "to shine" (see light (n.)).
权威例句
1. The conical configuration of the appendix makes obstruction of the lumen unlikely.
阑尾呈圆锥形,不易造成腔内梗阻.
2. One solution flows through the central lumen of the fibers.
一种溶液从纤维的中心腔流过.
3. Reconnect main lumen to suction source.
请将主腔管道连接吸引源.
4. The innermost region of cotton is called lumen.
棉纤维的最内层组织叫中腔.
5. A lumen is a measure of the rate of emission of light energy.