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。
The origin of square segregation in high speed tool steel bars in electroslag refining is analyzed.
对电渣重熔高速钢轧材方型偏析形成原因进行了分析试验。
The connecting cable from the ground rod to the SG bus bars in PDP cabinet is equal to100 Square millimeters or larger ?
安全地接地极与PDP中安全地汇流母线的连接电缆大于等于100平方毫米?。
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