... 皮带传动 belt drives 皮带圆筒 belt drum 带型升降机 belt elevator ...
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设计校核皮带轮传动、蜗轮蜗杆传动、圆筒、轴承座、导杆等。
Pulley gear, worm gears, cylinder, bearing base and quadrate pole etc were designed and checked.
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