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| 单词 | mammato-cirrus |
| 释义 | > as lemmasmammato-cirrus Forming names of clouds which have rounded festoons on their undersurface, as mammato-cirrus, mammato-cumulus. ΚΠ 1880 W. C. Ley in Nature 1 Jan. 211/1 In the first sketch ‘cumulus’ is shown with ‘fracto-cumulus’;..in the third the characteristic base of ‘mammato-cumulus’; and in the fourth that of ‘mammato-cirrus’. 1933 Jrnl. Royal Aeronaut. Soc. 37 676 Mammato-cumulus clouds..with their characteristic rounded lower surfaces. 1939 Meteorol. Gloss. (Meteorol. Office) (ed. 3) 129 The lower surface of certain cloud sheets sometimes has an udder-like or mammillated appearance. This structure is distinguished by the adjective ‘mammatus’ or the prefix mammato, e.g. mammatocumulus. < as lemmas |
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