求翻译：1、感觉法：用手指检查滚动轴承的轴向游隙，这种方法应用于轴端外露的场合。当轴端封闭或因其他原因而不能用手指检查时，可检查轴是否转动灵活。 　　是什么意思？

1, feeling method: check of rolling bearings axial clearance with your fingers, this method should be used for shaft end exposed locations. 　　When a closed shaft end or when there is no finger to check for other reasons, to check whether the shaft rotation and flexible.