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Round Baitcast Reel 鼓轮 ; 鼓型轮
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Cardboard, Thick round Reel centers, broke down.
纸板，厚圆卷筒中心，打破了。
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The four corners of the frame are provided with four pulleys. Wire ropes pass round the pulleys and are tightened on the reel drum of a crane trolley.
框架上面的四角装有四只滑轮，钢丝绳绕过滑轮向上系于起重行车的卷筒上。
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