It has a manipulator hand containing drilling and cutting tools that allow the robot to retrieve samples of rock from the ocean bed.
这种机器有一个操作臂，其中包括了钻头和开掘工具，使得机器人可以从深海海底回收岩石样品。
2
Using 3d printers as production tools has become known in industry as "additive" manufacturing (as opposed to the old, "subtractive" business of cutting, drilling and bashing metal).