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1.The transmission screw is essential for the smooth operation of the gearbox.
传动螺丝对于齿轮箱的顺畅运行至关重要。
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2. The technician carefully adjusted the transmission screw to ensure proper alignment.
技术人员仔细调整了传动螺丝，以确保正确对齐。
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3.The transmission screw was rusted and needed to be replaced.
传动螺丝生锈了，需要更换。