元件伏安特性测量。包括磁滞回线、二极管测试、三极管、三极管（随机数）-Component volt-ampere characteristic measurement. Including the hysteresis loop, diode test, transistor, transistor (random number)

重心轨迹的采集，通过随机数的采集模拟重心轨迹的变化。(Center of gravity trajectory acquisition)