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大功率led的散热设计

为:rja=(tj-ta)/pd(1) 式中pd的单位是w。pd与led的正向压降vf及led的正向电流IF的关系为:pd=vf×IF(2)如果已测出led散热垫的温度tc,则(

  http://blog.alighting.cn/lux1923/archive/2010/4/22/41107.html2010/4/22 9:32:00

to leon werth

. IF all these reasolenoid valvesons are not enough i will dedicate the book to the chil

  http://blog.alighting.cn/dd85422/archive/2010/5/13/44092.html2010/5/13 11:29:00

[转载]新型牙科照明led灯具

新型牙科照明led灯具 '800')this.width='800';IF(this.height'600')this.height='600';"gnatu

  http://blog.alighting.cn/xyz8888888/archive/2010/5/17/44668.html2010/5/17 22:10:00

the narrator crashes

s capsule toys awakened by an odd little voice. it said: IF you please-- nba jerseydraw me

  http://blog.alighting.cn/nihao85422/archive/2010/5/20/45054.html2010/5/20 15:23:00

that however not

t answer he repeated as IF he were smoncler jacketspeaking of a matter of great consequence

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which lasted a long time

n use it as his house. that is so. and IF you control valves are good i will give you

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should change to

d elegance.and this time eve women clothing shoesrybody accepted his report. IF i have tol

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in certain more

r it. for the little prince asked me abruptly-- as IF seized by a grave doubt-- "it is tru

  http://blog.alighting.cn/nihao85422/archive/2010/5/20/45064.html2010/5/20 15:54:00

he demanded:

he demanded:a sled street lightheep-- IF it ecircuit breakerats little bushes dsola

  http://blog.alighting.cn/qqmy123/archive/2010/5/27/46252.html2010/5/27 9:07:00

i am scarcely awake

r vanity-- which was IF the truth be known a littleugg boots uk dIFficult to deal with. on

  http://blog.alighting.cn/qqmy123/archive/2010/5/27/46257.html2010/5/27 9:13:00

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