Green environmental protection of semiconductor electric light source, the light is downy, spectrum pure, be helpful for people of visual acuity protection and healthy.
绿色环保型的半导体电光源，光线柔和，光谱纯，有利于人们的视力保护和身体健康。
White gold wedding rings and eternity bands are available in the entire spectrum of the metal through the mixing of pure gold with other metals.
只要将黄金与其他的金属混合做成合金，白金婚戒和永远箍在整个金属范围内都是可以获得的。
"Pure" black and "pure" white are our ideal "bright" and "dark" colors on the spectrum, respectively.
“纯”黑和“纯”白是我们的理想的“光明”和“黑暗”的色彩代表。
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