Besides structural self-waterproofing of Xuanwu Lake Tunnel, Nanjing, an additional waterproofing layer was set up to ensure waterproofing reliability.
为保证防水效果，南京玄武湖隧道除结构自防水外还设置了附加防水层。
Besides structural self-waterproofing of Xuanwu Lake Tunnel, Nanjing, an additional waterproofing layer was set up to ensure waterproofing reliability.
为保证防水效果，南京玄武湖隧道除结构自防水外还设置了附加防水层。
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