Table 3 Evaluation grade classification of support surface and pressure surface.
From: Evaluation of resource and environmental carrying capacity in rare earth mining areas in China
Evaluation grade division | Low level (L) | Medium level (M) | High level (H) |
|---|---|---|---|
P | 0 ≤ P ≤ 0.33 | 0.33 < P ≤ 0.66 | 0.66 < P ≤ 1 |
S | 0 ≤ S ≤ 0.33 | 0.33 < S ≤ 0.66 | 0.66 < S ≤ 1 |
