• A light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron.

    一种矿物含水硼酸组成,晶体状,是硼矿主要来源

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  • Color performance is better than high voltage sodium lamp when use LED as light source, the color rendering index of high voltage sodium lamp is 23 only, while LED street light is more than 70.

    LED路灯采用LED光源高压钠灯许多,高压钠灯显色指数只有23左右LED路灯显色指数达到70以上

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  • Color performance is better than high voltage sodium lamp when use LED as light source, the color rendering index of high voltage sodium lamp is 23 only, while LED street light is more than 70.

    LED路灯采用LED光源高压钠灯许多,高压钠灯显色指数只有23左右LED路灯显色指数达到70以上

    youdao

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