When in use, the indicatingpointer of a valve plate is rotated to point to some branch pipe on the dial plate, and the liquid of the liquid inlet main pipe flows to the branch pipe.
使用时，转动阀盘指针对准刻度上的某一支管，进液主管的液体就流向该支管。
2
If you move your mouse over these elements, notice that the pointer changes accordingly, indicating this is a link.
注意，如果将鼠标移动到这些元素上面，指针会相应地发生改变，表明这是一个链接。
3
In the process editor, move the mouse pointer to the far left edge of the process until the pointer changes to an icon indicating that you're adding a connection.