1) luen equivalent
流明当量
2) lumen
流明流明流明
3) lumen
流明
4) lm
流明
5) diversion open channel
导流明沟
6) open diversion channel
导流明渠
1.
Numercial study of nonlinear relationship between velocity and bottom width&discharge in open diversion channel;
导流明渠流速与底宽及流量的非线性关系
2.
Application of orthogonal curve mesh in flow simulation of open diversion channel;
正交曲线网格在导流明渠模拟中的应用
3.
As competent authorities of navigation affairs, the Changjiang Administration of Navigation Affairs and other organizations have actively taken part in the decision?making that the open diversion channel would be used as a navigation pass in the second construction period of Three Gorges Project.
其有关部门参与了三峡工程导流明渠兼通航的决策 ,并开展了相应的试验研究工作 ,提出了船舶通过明渠的上、下行航线和进一步优化明渠通航条件的措施。
7) lumen efficiency
流明效率
1.
The power dissipation of equivalent series resistance and its influence on lumen efficiency of GaN based high power light-emitting diodes;
9Ω,等效串联电阻的功率耗散在输入功率中所占的比例也随着输入功率的增加迅速增加,最高时接近50%,成为大功率输入时影响LED流明效率的主要因素。
8) diversion channel
导流明渠
1.
Excavation of diversion channel of Gaobazhou Hydroproject;
高坝洲水利枢纽导流明渠开挖
2.
Study on the key technology and engineering measures for earlier closure of TGP s diversion channel;
三峡工程导流明渠提前截流关键技术及措施研究
3.
The closure work of diversion channel of TGP is completed by means of end-dump advancing from both banks, it requires that the upstream closure dike should share two third of closure drop, and the downstream closure dike one third of closure drop.
三峡工程导流明渠采用双戗立堵截流 ,上下游戗堤分别承担 2 /3和 1/3落差 ,采用水力学计算确定相应落差分担关系下的进占协调关系和上下戗堤的龙口水力学参数 ,并对实际截流施工时的水力条件进行了反演计算。
9) luminance efficiency
流明效率
1.
50),a maximum luminance of 4 330 cd/m2,and a maximum luminance efficiency of 6.
44),最大流明效率为6。
10) lumen method
流明法
补充资料：流明
流明
lumen
1 iuming流明(l一)国际单位制中表示光通t的导出单位，简称流，符号为玩，是坎德拉球面度(cd·sr)的专门名称。由发光强度为Icd的点光源，在单位立体角(lsr)内发出的光通量称为r流明，即lha二led·sr。这个定义通常用于人工照明的计算，是l叫8年第9届国际计量大会(CGPM)通过的，一直沿用至今。l9’79年第16届国际计量大会重新定义了坎德拉之后，流明的等效定义是:频率为5扣xlolZHZ、且辐射通量为11683W的单色辐射束的光通量。它表明光通量的单位可直接与辐射量—功率相联系，而与发光强度坎德拉无关。(施昌彦)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条