excavating depth

例句：

1. 1.The engineer used a shovel toexcavate the soil for the foundation.
   工程师用铲子挖土来为地基做准备。
2. 2. The construction crew was working hardto excavate the tunnel.
   施工队正在努力开挖隧道。
3. 3. The scientist conducted anexperiment to measure the excavating depthof the soil.
   科学家进行了一项实验，以测量土壤的开挖深度。