Central flange port 中部的法兰口
The said flange connected with the central axis is a polygon.
所述的与中心轴连接的法兰盘为多边形。
The concave flange and the convex flange are provided with central pylomes for the conveying pipes to extend into; the concave flange is connected with the convex flange by the binding bolts.
凹形法兰和凸形法兰均设有供输送管伸入的中心通孔，凹形法兰和凸形法兰之间通过紧固螺栓联接。
Before loading and unloading the molecular sieve, the blind plate must be installed on the flange of the central pipe.
在装、卸分子筛之前，都必须在中心管上法兰处加装盲板。
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