平衡方程和运动学关系式是与材料类无关的.The equations of equilibrium and kinematic relations are independent of the type of material.机械系统的运动学与动力学包括刚体的平面移动.Kinematics and dynamics of mechanical systems including rigid bodies in plane motion....
Marx's work was more than a critical study of capitalist production.马克思的著作不仅仅是对资本主义生产的批判性研究。Some cynics say that sport is a mere instrument of capitalist domination.一些愤世嫉俗者认为体育不过是资本主义统治的工具而已.An economic crisis engul...