Due to the high lumens efficiency, good color reproduction characteristics of single matrix white phosphor, the research on it has great significance.
单一基质白光荧光粉因具有流明效率高、色彩还原性好等特点，所以对其研究的意义重大。
Yellow phosphor still can't meet the requirement completely for white LED products at present, so it is imperative to raise the efficiency, reduce the granularity, and prepare the spherical phosphor.
蓝光激发的黄色荧光粉目前尚未完全满足白光LED产品的要求，还需提高效率、降低粒度，制备出球形的荧光粉。
Fertilizer use efficiency will decrease when nitrogen and phosphor are increased.
而增加氮、磷投入亦能提高水分利用效率。
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