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对现有喷浆机械手按结构进行了分类，从工作空间的大小、喷射带的形成情况和是否存在喷射死区等方面进行了比较。
The existing grouting manipulators are classified according to the structure, and are compared in terms of the size of the working space, the formation of the jetting belt and the presence or absence of injection dead zone.