- 当轴线作公差基准时 (0篇回复)
- 尺寸数字一般写在尺寸线上方 (0篇回复)
- HSS在钢结构图纸中代表着什么 (0篇回复)
- 202106学习日志 (16篇回复)
- 英语理解误区 (4篇回复)
- 内测千分尺和内径千分尺 (1篇回复)
- 两种日本花键标准的差异 (0篇回复)
- 多元导数 (10篇回复)
- Every menber of the council 他是顾问团的一员? (0篇回复)
- for she had ordered it of the lace-makers of Honiton in Devon. (0篇回复)
- 夹具表面开槽是为了 (0篇回复)
- 螺栓组承受倾覆力矩时的受力 (0篇回复)
- 怎么就非标螺纹了 (2篇回复)
- 大直径梯形螺纹各参数的选取 (0篇回复)
- 线性公差能取代直线度公差? (0篇回复)
- 哪里有错?是根本没对的地方 (2篇回复)
- 没有外力 哪有内力 (0篇回复)
- 这放大五倍的结论是如何得出的 (0篇回复)
- 齿轮制图标准 (0篇回复)
- 读英语Greeting was responded (7篇回复)