Second,it is gained by resting force of spring when air exhausts.In such condition,because of gradual elongation of spring,output torque descends from max.of 90°to minimum of 0°.
Second,it is gained by resting force of spring when air exhausts.In such condition,because of gradual elongation of spring,output torque descends from max.of 90°to minimum of 0°.
第二;当失气时弹簧的恢复力所得。在这种情况下，由于弹簧的逐渐伸长，输出力矩从90°时的最大值，，递减到0°时的最小值。