| 1 |
00:00 318 |
| 2 |
00:00 323 |
| 3 |
00:00 367 |
| 4 |
00:00 388 |
| 5 |
00:00 322 |
| 6 |
00:00 324 |
| 7 |
00:00 318 |
| 8 |
00:00 300 |
| 9 |
00:00 290 |
| 10 |
00:00 328 |
| 11 |
00:00 269 |
| 12 |
00:00 271 |
| 13 |
00:00 276 |
| 14 |
00:00 258 |
| 15 |
00:00 355 |
金属材料弯曲试验