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Among the following equipment, the following equipment is used in the urban gas pipeline network () A, drainer B, tide discharge pipe C, discharge pipe D, compensator E, decontaminant BCD

author：Two build fighting

Among the following equipment, the ones used in the urban gas pipeline network are ()

A. Drain

B. Tide drain pipe

C. Discharge tube

D. Compensator

E. Decontaminator

BCD

town compensate equipment
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