pressureless compacting

例句：

1. 1. The engineer used a pressureless compacting machine to prepare the soil for construction.
   工程师使用一台无压压实机来准备土壤以供建设。
2. 2. The process of pressureless compacting is crucial for maintaining the stability of the soil.
   无压压实过程对于保持土壤的稳定性至关重要。
3. 3. In some areas, pressureless compacting is used to improve the drainage of the soil.
   在一些地区，无压压实被用来改善土壤的排水性能。