Caulking waterproofing is the last defense line of the entire waterproofing measures in shield tunnel.

嵌缝防水是盾构法隧道防水的最后一道防线。

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Caulking waterproofing is the last defense line of the entire waterproofing measures in shield tunnel.

嵌缝防水是盾构法隧道防水的最后一道防线。

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