水平 | A | B | C | D | |
时间/h | 温度/℃ | pH | 催化剂投加量/mg | ||
1 | 3.5 | 30 | 5 | 15 | |
2 | 4 | 40 | 6 | 20 | |
3 | 4.5 | 50 | 7 | 25 | |