在检定过程中，影响百分表示值稳定的原因是多方面的，有时往往不易准确判断。总的来说，由于各零部件相互配合松动或磨损引起的示值变化，在清洗、检定过程中是可以发现的。比如最常见的大指针孔与中心齿轮拍配合松动引起的示值变化是比较明显的，判断的方法也比较简单，不用 In the verification process, the impact of percentile value stability is due to many reasons, sometimes difficult to judge accurately. In general, due to the various components with each other loose or wear caused by changes in indication, in the cleaning, testing process can be found. For example, the most common large pointer hole and the center gear match caused by loosening the indication changes is more obvious, the method of judgment is relatively simple, not