Moreover, in comparison to high intensity discharge lamps, the luminance of LEDs is typically too low.
此外, 与高强度放电灯相比, LED的亮度通常太低.
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In case of the discharge lamps some triphase symmetrical circuit and varied unsymmetrical circuit are studied.
本文分析了大量采用气体放电灯照明时,三相对称电路和多种典型的不对称电路.
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