| 组别 | 实验前(Wa) | 实验后(Wb) |
| A | 4.364 | 4.449 |
| B | 4.335 | 4.412 |
| C | 4.416 | 4.489 |
| D | 4.420 | 4.475 |
| E | 4.373 | 4.421 |
| F | 4.346 | 4.388 |
| G | 4.326 | 4.365 |
| H | 4.335 | 4.361 |