impeller locking screw

例句：

1. 1.The impeller locking screw is essential for the proper functioning of the machine.
   搅拌器锁定螺丝对于机器的正确运行至关重要。
2. 2.The engineer carefully replaced the impeller locking screw to ensure the safety of the machinery.
   工程师仔细地更换了搅拌器锁定螺丝，以确保机械设备的安全。
3. 3. The impeller locking screw was rusted and needed to be replaced to prevent any further damage to the machine.
   搅拌器锁定螺丝生锈了，需要更换以防止对机器造成进一步的损害。