drilling jig

例句：

1. 1. The engineer used a drilling jig to make the holes in the rock.
   工程师使用钻探机架在岩石上打孔。
2. 2.The drilling jig is essential for drilling through hard materials like granite.
   钻探机架对于钻穿硬材料如花岗岩至关重要。
3. 3.The construction crew had to adjust the drilling jig to accommodate the newfound depth of the hole.
   施工队伍不得不调整钻探机架以适应新发现的洞深。