Three typical programs are given, They can be used to compute and draw the armature winding ofd-c motor, the torque speed characteristics and the starting transients of the motor are given.

By improving PP melt rheological properties, adjusting draw-texturing process, controlling winding tension and oil content, the crimping property of PP - BCF yarn can be improved effectively.

The landscape design follows Olmsted's Romantic tradition of winding paths and informal planting to draw the greenery of the Fens into the building.