lumen
英 ['lu?men]
美['lum?n]
- n. 流明（光束的能量單位）；（管狀器官內(nèi)的）內(nèi)腔
GRE擴(kuò)展詞匯
詞態(tài)變化
復(fù)數(shù):?lumina;
助記提示
1. 音譯“流明”
中文詞源
lumen 流明（光通量單位）
來自拉丁語lumen,光亮，光線，詞源同light.
英文詞源
- lumen (n.)
- 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.)).
雙語例句
- 1. The conical configuration of the appendix makes obstruction of the lumen unlikely.
- 闌尾呈圓錐形,不易造成腔內(nèi)梗阻.
來自辭典例句
- 2. One solution flows through the central lumen of the fibers.
- 一種溶液從纖維的中心腔流過.
來自辭典例句
- 3. Reconnect main lumen to suction source.
- 請將主腔管道連接吸引源.
來自辭典例句
- 4. The innermost region of cotton is called lumen.
- 棉纖維的最內(nèi)層組織叫中腔.
來自辭典例句
- 5. A lumen is a measure of the rate of emission of light energy.
- 流明是光能放射率的量度單位.
來自辭典例句