The other side of manual medicine injection switch (2), which is far from the medicine storing sac (1), is connected with the medicine tube (3).
3
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。
When in use, the indicating pointer 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.