The factors of the surface color change for bright copper rod are analyzed. Based on this, the measurement and the method on improving the quality of bright copper rod are put forward.
分析了影响光亮铜杆表面变色的各种因素，提出了提高光亮铜杆质量的措施和方法。
Microscopic plants less than half a centimeter across may be able to change the paths of 300-mile-wide tropical storms, due to their ability to change the color of the surface of the sea.
直径小于半厘米的浮游植物有能力改变300米宽的热带风暴，因为它们能够改变海水表面的颜色。
Note that the color of brick_mat is defined after its texture to change the color of the texture before it's applied to the surface.
注意，brick_mat的颜色是在纹理之后定义的，以便在应用到平面之前改变纹理的颜色。
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