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| ledge; rock ledge; rock ridge | |||
| phacolite | |||
| phacolith | |||
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| phacolith | |||
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岩脊 : 21 phrases in 7 subjects |
| Desert science | 3 |
| Earth sciences | 4 |
| General | 1 |
| Geology | 2 |
| Mountaineering | 4 |
| Oil / petroleum | 2 |
| Technology | 5 |
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