无涂饰木材表面镜面反射光泽度较低，大多分布于10%以下的范围，分布中心在5%左右。

The reflection wood surface gloss in mirror is low for no cover with paint, most of distribution is blow 10%, the distribution center is in 5% or so.

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本文通过研究红木8类19个树种的木材材色、光泽度、粗糙度参数，分析了红木类木材视觉物理量的分布特征；

This paper analyzed the wood surface color, luster and roughness of 19 different species of HONGMU in 8 groups.

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东北桦呈黄褐色，生长年轮略明显，木材有光泽，纹理直，结构细而均匀，但硬度稍差。

Northeastbirch is tawny, growth ring slightly obvious. Shiny wood, straighttexture, fine structure and uniformity, poor hardness.

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