long-pillar working

例句：

1. 1.The long-pillar working is a critical part of the construction process.
   长柱支撑工作是建筑过程中至关重要的一部分。
2. 2. The engineers were busy with the long-pillar working.
   工程师们忙于长柱支撑工作。
3. 3.The long-pillar working required careful planning and execution.
   长柱支撑工作需要仔细规划和执行。