constraint relationship的用法和樣例：
例句
- In a directed graph, the decision variables of the shortest path computation must be determined by a constraint that is called Kirchoff's constraint.
摘要已知一個有向圖，求解兩點間的最短路徑的決策變數滿足基爾霍夫約束關係。 - A method to solve the compatibility equation of distortion indirectly is put forward based on the kinematic constraint relation.
提出利用運動約束關係來間接求解過約束並聯機構變形協調方程。
