To display the connection lines between the nodes, click on the Normal View icon.
要显示两个节点之间的连接线，单击NormalView图标。
Select the connection element from the palette to wire the three nodes.
从选项板选择connection元素来连接三个节点。
Select the connection element from the palette to wire the three nodes.
从选项板选择connection元素来连接三个节点。
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