• 蜗杆与蜗轮硬齿面,适于动力传动新型环面蜗轮

    Such a new type of hourglass worm pair is particularly-favorable for power transmission.

    youdao

  • 蜗杆与蜗轮硬齿面,适于动力传动新型环面蜗轮

    Such a new type of hourglass worm pair is particularly-favorable for power transmission.

    youdao

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