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闸底涵洞
meaning in English
culvert under floor
under floor culvert
Related Words
涵洞进水口
环闸
气动闸
自动闸
鱼闸
闸池
低速闸
虹吸闸
闸址
南闸
闸等效电路
闸底
闸底涵管
闸电极
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