This system can approximately simulate the extrusion process and calculate the output of the extruder, brimming length along the axisofscrew, materiel settling time etc.
本系统能近似地模拟挤出过程，并预测挤出机的挤出产量、物料沿螺槽的充满长度、物料的停留时间等。
2
The screwaxis equation of the general motion of a rigid body has been derived by means of a comparison method.
本文用比拟法推得了刚体一般运动的螺旋轴方程。
3
Spatial motion of a rigid body can be seen as a screw motion of the body along a specific axis.