Suitable corrective measures must be taken to remove these obstructions, such as taper boring the pipe or installing a spacer.
必须采取适当的矫正措施来消除这些障碍物，例如对管道镗圆锥形孔或安装间隔垫片。
Suitable corrective measures must be taken to remove these obstructions, such as taper boring the pipe or installing a spacer.
必须采取适当的矫正措施来消除这些障碍物，例如对管道镗圆锥形孔或安装间隔垫片。
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