... 接缝灌浆 joint grouting 截水槽 cut-off trench 节制闸 check sluice ...
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短语
芯墙截水槽
core cutoff trench
置截水槽
Open Trench Cutoff
混凝土截水槽
concrete key trench
排水截槽
cut-off drain
;
off drain
;
drain cut
坝基截水墙槽
key trench
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