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光通维持率
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光通维持率
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【LED可靠性试验】
释
luminous maintenance rate
光通维持率
发光器件(灯)在规定条件下点亮,其光通量是随着工作时间的增加而逐渐衰减的,在寿命期间内特定时间的光通量与该灯的初始光通量之比。
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layout of port
layout of pumped storage power station
layout of railway station
layout of rural settlements
layout of transportation and communication
layout of underground engineering
layout of water conservancy planning
layout order
layout scheme
Layout space
layover
layperson
lay pipeline engineering in the shallow water
Layzer-Irvine equation
L. A. Zadeh
L. A. Zadeh (1921—)
Lazar Berman
Lazard
Lazard set
Lazar Markovich Lissitzky
Lazarus Eitaro Salii
Lazarus Ercker
lazarus taxa
Lazarus taxon
Lazarus'theory
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