single bar guide

例句：

1. 1. The engineer used a single bar to guide the drilling process.
   工程师使用一根引导棒来指导钻探过程。
2. 2. The single bar guide was essential for maintaining the accuracy of the measurements.
   单条引导线对于保持测量精度至关重要。
3. 3. The construction team followed the single bar guide to ensure that the project was completedon time.
   施工团队按照单条引导线进行工作，以确保项目按时完成。