pile protection

例句：

1. 1.The construction crew carefully piled the dirt to level the ground.
   建筑工人小心翼翼地把土堆起来平整地面。
2. 2. The company is investing heavily in new technology to enhance its pile protection systems.
   该公司正在大量投资于新技术，以增强其堆保护系统。
3. 3.The engineer designed a special pile protection system for the foundation of the building.
   工程师为大楼的基础设计了一种特殊的堆保护系统。