When bending metal, the material on the outside of the curve stretches while the material on the inside of the curve compresses.That part of the material which is not affected by either stress is the
发布于 2021-02-18 18:20:25
【单选题】
A mold line.
B bend tangent line.
C neutral line.
查看更多
- 体验AI问答！更聪明、超智能！
- 一款基于GPT的超级AI助手，可以对话、创作、写文案！
