"Contact Ratio of Spu" CNS Standards Search Result |
CNS 7579
- English Version Contact Ratio of Spur Gears in the 0.5 System 0.5齒制正齒輪之接觸比 - 英文版 |
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CNS 7579
- English Version Contact Ratio of Spur Gears in the 0.5 System 0.5齒制正齒輪之接觸比 - 英文版 |
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