Twin screw refining extruder works at high consistency and is an energy and water saving refining machine, it is a co-rotating and intermeshing twin screw extruder which is special for pulp refining.

双螺杆磨浆机是一种同向旋转、啮合型磨浆专用的双螺杆挤出机。根据相对运动原理得到的双螺杆磨浆机的螺纹曲线比较复杂，不利于加工制造。

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At the same time, he was refining a method of transferring files from one machine to another across a network.

BBC: H@ppy birthday to you