| 单词 | Wentworth scale |
| 释义 | Wentworth scale [`went´wǝrth ´skāl] GEOLOGY A geometric grade scale for sedimentary particles ranging from clay particles (diameter less than 1/250 millimeter) to boulders (diameters greater than 256 millimeters), in which the size classes are related to one another by a constant ratio of 1/2 (4, 2, 1, 1/2, etc.). |
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