scroll shear line

例句：

1. 1.The engineer drew a scroll shear line on the blueprint.
   工程师在蓝图上画了一条滚动剪切线。
2. 2. During the construction process, the shear line is crucial for ensuring structural integrity.
   施工过程中，剪切线对于确保结构完整性至关重要。
3. 3. The shear line in the drawing indicates where the material must be cut to fit the structure.
   图纸中的剪切线指示了材料必须被切割的位置以适应结构。