Summarization of Chapter 2 x Pressure Vertical to the surface and point into it At any point, pressure is independent of orientation * Equilibrium of a fluid element(流体静平衡) Vp= pR Equipressure surface(等压面) Pressure Distribution under Gravity(重力作用下的静压) Fluid in rigid body motion(加速运动流体平衡)Summarization of Chapter 2 * Pressure Vertical to the surface and point into it. At any point, pressure is independent of orientation. * Equilibrium of a Fluid Element (流体静平衡) p R   =  Equipressure surface（等压面） Pressure Distribution under Gravity(重力作用下的静压) Fluid in rigid body motion(加速运动流体平衡)