The working principle and energy conservation of pin, screw and temperature control equipment in pin barrel cold feed extruder were described.
介绍了销钉机筒冷喂料挤出机中销钉、螺杆及其新型温控装置的工作原理，论述了上述元件节能的理论依据。
2
This paper given here describes the structures, working principle and application conditions of new type machine the scrolled barrel made in foreign countries.
本文介绍了国外研制的新型螺旋滚筒分选机的结构、工作原理和应用。
3
Simple design, barrel stool + soft cushions, with hand hole, light but not simple, but cute elegance, is home-very useful working benches, stools, makeup for shoes stool!