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1. The airscrew hub isthe part of the screw that connectsto the nut.
空气螺丝头是螺丝与螺母连接的部分。
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2. The airscrew hub isresponsible for transmitting power fromthe motor to the screw.
空气螺丝头负责将电机的动力传递给螺丝。
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3. The airscrew hub is a critical componentof the machine's operation.
空气螺丝头是机器运行的关键部件。