setting-up screw

例句：

1. 1. The engineer useda setting-up screw to secure the new door.
   工程师用一个安装螺丝来固定新门。
2. 2. The carpenter needed to tighten the setting-up screws before painting the wood.
   木匠在上漆前需要拧紧安装螺丝。
3. 3.The construction crew set up the setting-up screws for the scaffolding.
   建筑工人为脚手架设置了安装螺丝。