The relationship between the luster and the surface structure of pearl are discussed.

分析了珍珠的光泽与其表面结构的关系。

Protect a is a pure, matt grey coloured chromium coating with a pearly surface structure.

保护是一个纯粹，马特灰色有色铬镀层的珠光表面结构。

At last, the corresponding analysis of surface structure and testing of fatigue life were given.

最后还给出了相应的表层组织结构分析和疲劳寿命试验结果。

Objective To investigate the effect of lidocaine on mucosal surface structure of trachea in rats.

目的：探讨利多卡因对大鼠气道黏膜表面结构的影响。

Large mining depth single seam non-full mining, surface structure has only minor extent of damage.

大采深单一煤层的非充分采动，地面建筑物受损程度很小。