Geology. An index of particle size, equal to the negative of the logarithm to base 2 of the diameter in millimetres. Frequently attributive, as phi…
| 单词 | θ7546 |
| 释义 | the world > the earth > earth sciences > geology > mineralogy > [noun] > particle size (1) phi1934 Geology. An index of particle size, equal to the negative of the logarithm to base 2 of the diameter in millimetres. Frequently attributive, as phi… |
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