nodal values

例句：

1. 1. The nodal points of the network are crucial for communication.
   网络的节点对于通信至关重要。
2. 2. The nodal line is the main artery that carries blood to the heart.
   心脏的主要动脉是连接心脏的节点线。
3. 3. The nodal structure of the plant is essential for its survival.
   植物的节点结构对其生存至关重要。