basic exploratory line

例句：

1. 1. The basic exploration line is crucial for the success of the project.
   基本勘探线对于项目的成功至关重要。
2. 2.The company's basic exploration line has been expanded to include new areas.
   该公司的基本勘探线已经扩展到新的区域。
3. 3. The basic exploration line was designed to help us identify potential risks.
   基本勘探线的设计是为了帮助我们识别潜在的风险。