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误讲得:轻,操控简单,机构少减少出问题概率缺点是链条斜拉力损耗大零件损耗也大,还有花鼓几何进一步压缩必须靠更多的辐条更强的圈来弥补左右张力造成的不平衡等缺点....... (2015-09-14 12:40)
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