By studying some boring machining families, standard time datum for unit operation was set up. Some methods of shortening operation changing time were also presented.
通过对钻孔加工族的时间研究，初步建立不同工步单件加工时间的标准资料，并探讨节省作业转换时间的方法。
The invention discloses a chip absorbing and cooling connecting piece used for a boring end effector, which is installed on the front plate of the supporting unit of the boring end effector.
本发明公开了一种用于钻孔末端执行器的吸屑和冷却连接件，该连接件安装在钻孔末端执行器的支承单元的前板上。
Coal-rock boring machine is able to achieve cutting, loading, reproduced transport, walking and spray Dust combined unit.
半煤岩掘进机是一种能够实现截割、装载、转载运输、行走和喷雾除尘的联合机组（略）。
Coal-rock boring machine is able to achieve cutting, loading, reproduced transport, walking and spray Dust combined unit.
半煤岩掘进机是一种能够实现截割、装载、转载运输、行走和喷雾除尘的联合机组（略）。
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