放射治疗射线的线性优化模型的最优的射野强度，并给出剂量分布（画出剂量分布图）。
从原问题的求解中给出对偶问题的最优解。(Solve the linear optimization model of radiation for treatment, calculate the optimal field strength, and give the dose distribution (draw the dose distribution chart).
Give the optimal solution to the dual problem from the solution of the original problem.)