outside tunnel control survey

例句：

1. 1.The engineer conducted an outside tunnel control survey to ensure the safety of the construction site.
   工程师进行了隧道外控制调查，以确保施工现场的安全。
2. 2. During the construction, the team conducted an outside tunnel control survey to monitor the progress and identify any potential issues.
   施工期间，团队进行了隧道外控制调查，以监控进度并识别潜在问题。
3. 3.The survey was crucial for identifying the optimal location for the new tunnel entrance, as it provided valuable data on the surrounding geological conditions.
   这次调查对于确定新隧道入口的最佳位置至关重要，因为它提供了关于周围地质条件的重要数据。