flanged bottom

例句：

1. 1. The boat's flanged bottom was designed toprovide extra stability in rough waters.
   这艘船的凸缘底部设计用来在恶劣的水域中提供额外的稳定性。
2. 2. The engineer useda flanged base to attach thenew piping system to the old one.
   工程师使用一个凸缘基座将新的管道系统连接到旧的系统上。
3. 3. Thecar's flanged bottom isdesigned to absorb shocks and vibrationsduring acceleration.
   汽车的凸缘底部设计用来吸收加速时的震动和冲击。