elastic and plastic mechanics 基本例句 弹塑性 Mechanics equations which differed from elastic-plasticity rock are obtained.推导出不同于弹塑性岩石的力学方程式。 Springback is an inevitable physical phenomenon in the metal sheet elastic and plastic forming.回弹现象是金属板料弹塑性成形过程中不可避免的物理现象。