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1·Both the graduated circle and vernier are equipped with fine adjusting screws and locking device so as to achieve fine adjustment.

刻度和游标都装有微动调整和锁紧装置，进行精细调节。

2·The spiral angle of graduated circle was rough estimated by measuring the addendum circle diameter and modified on milling machine.

测量齿顶圆直径估算分度圆螺旋角，用分度头在铣床上修正分度圆螺旋角，并进行误差分析。

3·When I graduated, I kept my circle of female friends from college, worked with all women and lived with two female roommates.

毕业后，我的朋友圈子里都是女人——我大学时的女朋友们，我跟女人一起工作，和两个女室友同居。