单词 | Beaufort scale |
释义 | Word Frequency Beaufort scalenoun meteorology an international scale of wind velocities ranging for practical purposes from 0 (calm) to 12 (hurricane force). In the US an extension of the scale, from 13 to 17 for winds over 64 knots, is used Word origin C19: after Sir Francis Beaufort (1774–1857), British admiral and hydrographer who devised it |
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