*静力学statics
*运动学kinematics
*动力学dynamics
*理论力学theoretical mechanics
*约束constraint
*力系force system
*平衡力系balanced force system
*刚体rigid body
*力偶force couple
*力的平移定理theorem of translation of a force
*主矢principal vector
*主矩principal moment
*物体系统（物系）body system (bs)
*滑动摩擦sliding friction
*摩擦角angle of friction
*自锁self-locking
*物体的重心the center of gravity of object *轨迹trajectory
*速度velocity
*加速度acceleration of a particle
*运动方程equation of motion
*转角angle of rotation
*转动方程equation of rotation *角速度angular velocity
*角加速度angular acceleration
*匀速转动uniform rotation
*绝对速度absolute velocity
*绝对加速度absolute acceleration
*相对速度relative velocity
*相对加速度relative acceleration
*牵连速度convected velocity
*牵连加速度convected acceleration
*绝对运动absolute motion
*相对运动relative motion
*牵连运动convected motion
*科氏加速度coriolis acceleration
*平面运动方程equations of plane motion *质点particle
*动量momentum
*冲量impulse
*动量矩moment of momentum
*功率power
*动能kinetic energy
*动静法dynamic-static method
*虚位移virtual displacements
*虚功virtual work。