The patient with high - gradesurface osteosarcoma was followed up for 6 months.
至今全部病例存活，其中高度恶性表面骨肉瘤的病人随访时间为6个月。
2
When such damage comes to the surface of steel and rust occurs, the surface shall be cleaned by power tools to the secondary surface preparation grade and coated as originally painting scheme.