接着，通过求解局部扩张血管段内的血液流动方程，导得血液流速、压力和血管壁切应力的分析表达式。
Through solving the blood flow equations for local vessel expansion region, the analytical expressions of blood flow velocity, pressure and wall shear stress were then obtained.
这是准备髁间切迹、建立胫骨隧道、在完全屈膝前放置股骨导针的最佳工作角度。
This is the best working Angle to prepare the notch, drill the tibial tunnel, and initiate the femoral guide pin before fully flexing the knee.
求切平面方程的一般方法是先求切平面的法向量(借助偏导)，再用点法式写出切平面的方程。
The common method to quadric surface equation is to get the Normal Component first, and then write out the equation through dot method.
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