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The mean of the measurement results for a particular factor at the kth level and the mean of the total RE of chlorophyll a.
| Parameter | Level | PREkpH | PRE kTime | PRE kPrssure | PRE kFlow | PRE kDistance | PRE kO3 | PRE kH2O2 | PRET |
|---|---|---|---|---|---|---|---|---|---|
| Chlorophyll a | 1 | 65.45 | 45.61 | 42.62 | 65.14 | 70 | 50.8 | 53.18 | 58.45 |
| 2 | 57.07 | 60.04 | 57.09 | 58.62 | 57.2 | 59.78 | 58.39 | ||
| 3 | 52.85 | 69.72 | 75.65 | 51.61 | 48.21 | 64.79 | 63.79 |
