| 组别 | 实验前(Ws) | 实验后(Wt) |
| A | 8.397 | 7.672 |
| B | 6.276 | 6.457 |
| C | 5.249 | 5.487 |
| D | 3.734 | 3.842 |
| E | 2.471 | 2.599 |
| F | 1.988 | 2.032 |
| G | 1.252 | 1.317 |
| H | 0 | 0 |