The unloading curve normally falls below the loading curve to form a hysteresis loop .
卸载曲线通常都落在加载曲线之下,形成一个滞后回线。
2
The loading curves of coal-rock combination body are usually not coincidence with the unloading curves. In addition, they usually do not form a closed loop.
同一循环中的加载与卸载曲线基本不重合,且多数情况不形成闭合环路;
3
Through comparison, a scheme of "ac generating, DC energy feedback" electr IC clo sed loop transmission loading test bench is suggested and the hardware diagrams and work principle are presented.