double-wall cofferdam

例句：

1. 1.The double-wall cofferdam was designed to protect the workers during construction.
   双壁堰墙的设计是为了在施工期间保护工人。
2. 2.The double-wall cofferdam is an essential part of the dam construction process.
   双壁堰墙是大坝建设过程中不可或缺的一部分。
3. 3. The double-wall cofferdam was constructed using a combination of materials to ensure its durability and stability.
   双壁堰墙的建造使用了多种材料，以确保其耐用性和稳定性。