它是单晶体，可以制得极高的光洁度。

It is a single crystal and can be made with high brightness and cleanness.

泄漏率与表面平滑度和光洁度有关。

The rate of leakage is a function of the smoothness and finish of the surfaces.

公司也提供一个布袋保护高度的镜子光洁度。

A cloth bag is provided to protect the high mirror finish.

如光洁度受影响，可在眼镜布上放上烟灰顺时针揩擦，光亮度即可恢复。

If lucency is not good enough, add some cigarette ash on the eyeglass cloth and rub the glass clockwise, and the lucency will be resumed.

我们委托本地的沙锅哪怕检验局对着皮货进行了再检查，结果变色的、光洁度不够的约占30%。

We entrust the Local Inspection Authority to re-examine the goods.The result of the inspection indicates that the goods below the standard in smooth finish and color makes up 30 per cent of the goods.