"A moonbow is just like a rainbow but is caused by the moon reflecting off rain mist at a certain Angle," says Pacholka.
一道月虹就像一道彩虹，它是由月光在湿度大的薄雾中经过一定角度反射形成的。
2
Angle of Incidence the Angle between an incident ray and the normal to a reflecting or refracting surface.
入射角度入射光与照射在反射或折射平面上的正常光线之间的角度。
3
Sampling distributions of mean direction and resultant length were used to develop control charts respectively reflecting the central tendencies and positions of the Angle process.