机械运动原理

                                                                               

  马耳他十字机芯——用于控制时钟的秒针运动

    

 V型6缸发动机  

     直列式4缸发动机

 

   水平对置式4缸发动机  

 

          飞机星形5缸发动机                                            

                          三角转子发动机               

       

                         2转子发动机

 

     

                                                                                     汽车等速万向节

                                                                                       汽车变档机制

        圆锥齿轮的啮合图

                                                                                           椭圆规

                                                                                         缝纫机的走线原理

                                                                                                              炮弹火药装填系统