The methods include posterior ring internal fixation by using sacral bars, four-hole square plates or cancellous screws with anterior ring fixed by plates.
固定方法有:前环骨折采用钢板固定;后环骨折分离采用骶骨棒,四孔方形钢板,松质骨螺钉固定。
2
He used a sharp stick to dig a holefour feet deep.
他用一个锋利的棍子挖了一个四英尺深的洞。
3
He dug the hole, put the four gold pieces into it, and covered them up very carefully.