flanged shaft

例句：

1. 1. The machine has a flanged shaft that can rotate freely.
   这台机器有一个可以自由旋转的法兰轴。
2. 2. The construction worker used a flanged shaft to lift the heavy concrete block.
   建筑工人使用一个法兰轴来举起沉重的混凝土块。
3. 3. The flanged shaft is crucial for the smooth operation of the machine.
   法兰轴对于机器的顺畅运行至关重要。