缓慢循环 meaning in Chinese

lazy circulation

In fatigue tests , the fatigue test was paused whenever fatigue life cycle was reached to 1500 , then similar gradual cyclic experiment was re tried , the displacement distribution around the hole and the strains at the side of hole were measured
在疲劳试验过程中，每当疲劳循环1500次就停机，进行同样的缓慢循环实验，并测量出孔周的位移场及孔边应变。