led_luminous_efficiency_有道手机词典

1.Exchange 220v LED lamp, have high luminous efficiency, long, green and was already widely used gas-masks advantages, lighting and residential areas, schools, hospitals, public lighting.
交流220v LED防爆灯，有发光效率高、奉命长、绿色环保等优点，已广泛用危险区照明及住宅小区、学校、医院、公共场所照明。
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2.In recent years, there is a large improvement on the luminous efficiency of LEDs. However, there are some problems in LED ESD protection.
近年来，氮化镓基led在发光效率上有很大的进展，不过在静电防护上却还有很大的改善空间。
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3.As compared with traditional packaging method, the coating method with phosphors away from the LED chip can improve the luminous efficiency by more than 5%.
与传统封装方法相比，采用荧光粉远离芯片的封装方法可使发光效率提高5%左右。
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