发动机原理动画图解 

http://km2000.us/myshoots/shoelace.flv
涡轮式发动机工作原理图解http://km2000.us/myshoots/aeroengine.flv
wa特的蒸汽机,http://km2000.us/myshoots/steamengine.flv
高铁电动机的工作原理,http://km2000.us/myshoots/eletricalengine.mp4
http://km2000.us/myshoots/How to Make Simple Electric Motor from Battery in 1 minute.MP4