Experience on 42 Cases of Protrusion of Lumbar Intervertebral Disc Treated by Submucous Resection of Vertebral Pulp是什麼意思_Experience on 42 Cases of Protrusion of Lumbar Intervertebral Disc Treated by Submucous Resection of Vertebral Pulp在線翻譯_英語_讀音_用法_例句