巴克使用的不锈钢并不容易变色。
Stainless steel, which is what Buck USES, does not discolor easily.
提示：大气湍流会导致恒星的形象闪烁不定，或者亮度不均，也比行星的更容易变色。
Hint: atmospheric turbulence causes the image of the star to scintillate or vary in brightness and color more readily than the planet.
毛细孔分布均匀、孔径适宜、韧度高、耐油性高、不易腐蚀、容易清洗干、不易变色、性质温和柔软，是美容界认定的一种高级产品。
They are thought as high quality products for their densities are well distributed; aperture is proper, high ductile, high oil resistance, not easy to corrode and fade away, easy to wash and soft.
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