| 1 |
00:00 380 |
| 2 |
00:00 381 |
| 3 |
00:00 440 |
| 4 |
00:00 445 |
| 5 |
00:00 380 |
| 6 |
00:00 403 |
| 7 |
00:00 373 |
| 8 |
00:00 351 |
| 9 |
00:00 341 |
| 10 |
00:00 383 |
| 11 |
00:00 325 |
| 12 |
00:00 325 |
| 13 |
00:00 338 |
| 14 |
00:00 312 |
| 15 |
00:00 412 |
金属材料弯曲试验