unit solid angle造句

例句与造句

1. The brightness or luminance of an object is defined as the luminous flux emitted per unit area of the object into unit solid angle .
   物体的亮度或发光率定义为物体面积发射到单位立体角内的光通量。
2. It's difficult to find unit solid angle in a sentence. 用unit solid angle造句挺难的