分析结果表明，不同布孔方案的射孔套管的剩余强度是不同的。
The result of analysis indicates that the remaining strength of perforating casing with different scheme for holding is different.
更糟糕的是，与所有的小空调通风孔实际套管的噪声放大。
To make matters worse, the actual casing with all the little air vent holes amplifies the noise.
椎间盘壁的缺损处用激光或射频探头处理。检查椎间孔和神经，确认减压充分。去除工具和工作套管。
The disc wall defect is treated with a laser and radiofrequency probe. The foramen and nerves are inspected to confirm successful decompression. The instruments and sleeve are removed.
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