The thickness ratios of samples from R068 to R0812.
| Sample | R088 | R0810 | R078 | R068 | R0710 | R0610 | R0812 | R0712 | R0612 |
|---|---|---|---|---|---|---|---|---|---|
| Thickness ratio | 0.018 | 0.024 | 0.025 | 0.026 | 0.028 | 0.033 | 0.039 | 0.040 | 0.043 |
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