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按需印刷A Treatise On Belts And Pulleys[9780548506752]
按需印刷Shafting, Pulleys, Belting, Rope Transmission And Shaft Governors[9780548479247]
【4周达】Shafting, Pulleys, Belting and Rope Transmission [9781410202949]
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【4周达】Pulleys [9781839270697]
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【4周达】Let's Find Pulleys [9781398205024]
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【4周达】Simple Machines: Wheels, Levers, and Pulleys [9780823433094]
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Simple Technology: Pulleys [9781526323545]
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