Crosswalks coat of paint to encourage walking and biking.过街天桥上都挂上鼓励步行和骑车的条幅.Represents the intersection of two small roads with crosswalks.表示带人行横道的两条小路的交叉路口.Many pedestrians cross the road recklessly instead of using cro...
去除内应力,如用冲压 、 完全或焊接成型的工件.To remove internal stress as those produced by drawing, bending, or welding.摘要单向拉伸试验中,在比例极限内, 应力应变关系服从胡克定律.In simple tension experiment, the stress - strain relationship submits Hook's law wi...