steep taper shank

例句：

1. 1.The engineer used a steep taper shank to drill the hole.
   工程师使用一个陡峭的锥形杆来钻那个洞。
2. 2.The construction crew used a steep taper shank to drive the pile into the ground.
   施工队使用一个陡峭的锥形杆将桩打入地面。
3. 3. The steep taper shank made it difficult for the workers to reach the top of the building.
   陡峭的锥形杆让工人们难以到达建筑物的顶部。