Variations in disc speed, air. steam pressures produce different fibers. Similar to rockwool but the higher iron content; lower calcium content.
圆盘速率的变化空气蒸汽的压力生产不同的纤维类似于岩石棉而铁的含量更高更低的钙的含量。
2
Protrusion of lumbar intervertebral disc is the common diseases in the lower lumbar spinal canal.
腰椎间盘突出症是下腰部椎管内较常见的疾病。
3
Objective To evaluate the clinical value of pedicle fixation and bone grafting for the treatment of degenerative lumbar disc diseases coupled with lower lumbar spine instability.