极大地提高淬火件光亮度。

Greatly improve the quenching brightness.

强调色彩光亮度的绘画风格。

Painting style that emphasizes a particular clarity of light.

经常清洁灯饰和灯泡以保持光亮度.

Keep lighting fixtures and lamps clean to maximise their efficiency.

牵牛星与织女和天津四相比,光亮度还是略为逊色.

Altair is as bright as Vega and Deneb.

具有优良的弹性和抛光效率。其特点是形状保持长久，经抛光后的玻璃沟槽光亮度非常好。

The characteristics of the wheel are long-last shape keeping and the brightness degree of the glass groove is very high after grinding.

型材配方及挤出工艺相同的情况下，模具表面质量也是影响型材表面光亮度的一个主要因素。

When the formula and the extrusion technique for the profile shapes were kept unchanged, the surface quality of the mould was also a key factor that had effect on the surface gloss of profile shapes.

目前通行的光学教材中关于光亮度定义的文字叙述和数学表达式基本相同，但是却有两种不同的几何图示。

The definition and expression of brightness in current textbooks are nearly the same, but there are two different kinds of geometrical schemes used.

开普勒能将它唯一的一件工作做到极致就是一次又一次地测量几十万星星的光亮度，试图找到其中少数发暗的星体。

Kepler will simply do one thing unbelievably well--measure the brightness of 100,000 stars over and over and over,looking for a few of those 100,000 stars that dim.