The Prime Minister avowed that he saw no need to change his country's policies.首相公开表示他觉得没有必要改变国家政策。He saw the pitiless eyes of his enemy...他看到了敌人冷酷的眼神。He glanced over his shoulder and saw me watching him.他扭头瞥了一眼，看见我...
A kind of simple manual rolling circularity die was introduced.介绍了一种简易手工卷圆模.The method of equivalency slope circularity approaching was presented for this.本文提出了一种用等斜率圆弧逼近复杂曲线的加工方法.Thrown when a circularity has been detec...