入射角等于反射角.The angle of incidence equals the angle of reflection.冬季小入射角阳光的透射可以增加室内亮度.Low - angle winter sunlight penetration can give rise to glare.这种情况中的入射角是三十度.The incident angle in this case is 30 degree....
Let me now deal more fully with the important question that was touched on earlier.现在我来详细谈一谈前面已经提到的那个重要问题。He became the fourth earl on the death of his father earlier this year.今年早些时候他父亲去世，他继为第4代伯爵。I knew she had some fu...