... 接缝灌浆 joint grouting 截水槽 cut-off trench 节制闸 check sluice ...
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... 事情桥 service bridge 齿墙 cut-off trench 冲沙闸(排沙闸) silt-releasing sluice ...
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cut off trench of puddle 粘土防渗槽
Trench cut-off 截水壕
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