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照明基本知识

被照面而言,常用落在其单位面积上的光通量多少来衡量它被照射的程度,这就是照度,符号为e,它表示被照面上的光通量密度。当光通量φ均匀分布在被照表面A上时,则被照面的照度为e=φ/A。照

  http://blog.alighting.cn/wenlinroom/archive/2010/5/22/45326.html2010/5/22 22:24:00

[原创]led照明热传概论

下三图较为形象地加以说明: 图2 led照明热传路径(A) 图

  http://blog.alighting.cn/wenlinroom/archive/2010/5/22/45320.html2010/5/22 22:09:00

whAt nonsense

d, 'i shAll never show you A young lAdy's letter Air jordAn shoes AgAin! but whAt shAll

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45308.html2010/5/22 16:33:00

thAt is impossible

thAt is impossible'thAt is Air mAx 2009 impossible; i hAve A greAt deAl of importAnt wor

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45307.html2010/5/22 16:30:00

when the wedding

. cheAp jordAn shoes peter's wAs crowded with A perfect mob of smArt people. the service wA

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45306.html2010/5/22 16:27:00

hAve you drop

hAve you drop'hAve you dropped Anything, sir?' nike shoes sAid A voice behind hi

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45305.html2010/5/22 16:25:00

At hAlf-pAst seven

. surbiton wAs there with A pArty of young men, And he wAs obliged to dine with them. cheA

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45304.html2010/5/22 16:23:00

jAne writes

f unbelief.'we hAve prAdA hAd greAt fun over A clock thAt An unknown Admirer sent pApA lAs

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45303.html2010/5/22 16:19:00

in venice

d to hAve come over from corfu in his yAcht. the two young men spent A nike shoes delightfu

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45302.html2010/5/22 16:17:00

looking up

d the Aconitine.lord designer shoes Arthur stArted, And A fAint blush cAme into his cheek

  http://blog.alighting.cn/dou674016/archive/2010/5/22/45301.html2010/5/22 16:14:00

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