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1.The engineer used a lever shaft plug to adjust the gears.
工程师使用杠杆轴封头来调整齿轮。
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2.The tool was designed to fit securely into the lever shaft plug.
该工具被设计成可以牢固地插入到杠杆轴封头中。
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3. The lever shaft plug is essential for maintaining the smooth operation of the machinery.
杠杆轴封头对于保持机械设备的平稳运行至关重要。