连接件具有锥形孔。
烧烤管的入口连接到锥形孔的上部，并且排气管连接到锥形孔的下端。
The inlet of the grilling pipe is connected to an upper portion of the tapered hole , and the air discharging pipe is connected to a lower end of the tapered hole .
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.
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