直线扩展 meaning in English
linear expansion
Examples
- While in the zigzag thin area , the crack can only propagate by zigzag manner . in the fracture of titanium , deformation twins might forme in the front of crack
裂纹在带状薄区中可以直线扩展，也可以呈z字形扩展，而在z字形薄区中裂纹只能呈z字形扩展。