additional waterproofing layer

基本解释

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。
The article introduces mainly design of additional waterproof layer of Hangzhou Grand Theatre, focusing on waterproofing design of main details and waterproofing treatment of special positions.
主要介绍了杭州大剧院附加防水层的设计方案，对大剧院地下工程中主要节点的防水设计和特殊施工部位的防水处理做了重点阐述。
Although the role of waterproofing in Shanghai Subway stations an additional waterproof layer plays is limited, its auxiliary effect in the comprehensive waterproofing system is absolutely necessary.
附加防水层在上海地铁车站工程结构中的防水作用既是有限的，又是必不可少的，在车站综合防水体系中起着辅助防水的功效。