Cd
[,si:'di:]
例句/造句/用法:
- On emerging from the glass, the light is refracted away from the perpendicular and takes the direction _CD_, which is clearly parallel to its original direction. 伯莎M.克拉克. 科學通論.
- The angle formed by the reflected ray (_CD_) and this same perpendicular is called the angle of reflection. 伯莎M.克拉克. 科學通論.
整理:康拉德