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Water resources
containing
阀门
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all forms
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in specified order only
Chinese
English
圆周齿形保险
阀门
dentated periphery for lock valve
沟渠管道内的
阀门
line valve
流量控制闸门和阀
flow-control gates and valves
阀门
井
valve shaft
高圆筒
阀门
high cylindrical valve
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