| 单词 | soil horizon |
| 释义 | > as lemmassoil horizon soil horizon n. = horizon n. 5b. ΘΚΠ the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > horizon horizon1896 soil horizon1923 1923 Soil Sci. 16 97 The relative amount of silica in the gray horizon appears to be higher than in the soil horizons below. 1964 W. C. Putnam Geol. x. 245/1 The C-horizon is essentially a transitional zone between the true soil horizons above and the unaltered parent material below. 1972 J. G. Cruickshank Soil Geogr. iii. 93 All soil horizons have a three-dimensional form, but those that have a clearly visible colour and texture..are perhaps the most convincing examples. < as lemmas |
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