plan shear indicator

例句：

1. 1. Theengineer used the plan shear indicator to ensure that the beam was properly supported.
   工程师使用计划剪力指示器来确保梁得到适当的支撑。
2. 2. During construction, it is important to check the plan shear indicator regularly to prevent accidents.
   在施工过程中，定期检查计划剪力指示器以防止事故的发生。
3. 3. The plan shear indicator is a critical tool for assessing the structural integrity of buildings.
   计划剪力指示器是评估建筑物结构完整性的关键工具。