前几天碰到一篇关于聚吡咯的文献，碰到下面这句话：
The region of the C-H out-of-plane deformation vibration of the ring is located at 899 cm-1, and the C-H out-of-plane ring deformation vibration is located at 792 cm-1.
不知道out-of-plane deformation vibration of the ring和out-of-plane ring deformation vibration 到底该怎么理解，请相关大虾指教，谢过。
请专业人士解答。
该地区的CH外的平面变形振动的环位于899厘米- 1 ，甲烷的平面环变形振动位于七百九十二厘米- 1 。"out-of-plane deformation vibration of the ring和out-of-plane ring deformation vibration"是“外的平面变形振动和环外的环平面变形振动”...
