mass concrete invert

例句：

1. 1.The construction of the new bridge required the use of mass concrete inverts to reinforce the foundation.
   建造新桥需要使用混凝土倒置块来加固地基。
2. 2. The engineer carefully designed the mass concrete inverts to ensure theirstability during construction.
   工程师仔细设计了混凝土倒置块，以确保施工过程中的稳定性。
3. 3.The inverts were installed at the bottom of the pier, providing a strong support for the bridge's weight.
   这些倒置块被安装在桥墩底部，为桥梁的重量提供了强大的支撑。