Taking spiral chute as example,a method of unfolded drawings and views about irregular spiral surface is introduced.The surface is undevelopable and too complic
A kind of drive circuit which is low power consumption,high-performance and high-power output for stepping motor,based on BY-5064,and a kind of dedicated circui
The report mainly studied the crawler frame motion platform to reduce weight and increase the intensity. Report described the structural design process which us
A large number of experiments have been done for analyzing the two important indicators -compressive strength and flexural strength,which affect computer numeri