The Clinical Study on the Relation Between the Space Occupation of Protruded Nucleus Pulposus Inside Spinal Canal and the Degree of the Nerve Root Compression是什么意思_The Clinical Study on the Relation Between the Space Occupation of Protruded Nucleus Pulposus Inside Spinal Canal and the Degree of the Nerve Root Compression在线翻译_英语_读音_用法_例句