该机构具有结构紧凑，运动平稳等特点。
Such a mechanism has the characteristics of simple structure and steady movement.
其具有结构紧凑、传动效率高、牵引力大的特点。
It features with compact structure, great transmission efficiency and big tractive forces.
其具有结构紧凑，回收质量好，工作效率高的特点。
It has the characteristics of compact structure and good coiling quality.
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