The strain of the proeutectoid ferrite in hypoeutectoid steel drawing measured and analyzed by quantitative metallography.采用定量金相法分析计算了亚共析钢拉拔变形中先共析铁素体应变量....
伴娘身着杏黄色和白色相间的透明硬纱礼服。The bridesmaids wore apricot and white organza.边界摩擦与导纱杆材料质地无关.Boundary friction is independent of the guide material used.所用卷装的尺寸决定了落纱的次数.The sige of the package in use determines the frequency of dof...