maximum length of bore ground

例句：

1. 1. The maximum length of bore groundis crucial for the construction of the tunnel.
   最大钻孔深度对于隧道的建设至关重要。
2. 2. The engineers carefully measured the maximum length of boreground to ensure the stability of the structure.
   工程师们仔细测量了最大钻孔深度，以确保结构的稳固。
3. 3. The maximum length of boreground was determined by analyzing the geologicaldata.
   最大钻孔深度是通过分析地质数据确定的。