短語詞組短語adjoint boundary -value problem 伴隨邊值問題third boundary -value problem 第三邊值問題periodic boundary -value problem 周期邊值問題initial boundary -value problem 初邊值問題unilateral boundary -value problem 單邊邊值問題multipoint boundary -value problem 多點邊界值mixed boundary -value problem 混郃邊值問題riemannian boundary -value problem 黎曼邊值問題boundary -initial value problem 邊值 返回 boundary-value problem