| 单词 | tropical depression |
| 释义 | > as lemmastropical depression tropical depression n. Meteorology a circular or oval system of atmospheric low pressure formed over a tropical ocean and accompanied by winds of moderate speed (typically up to 61 km per hour). ΚΠ 1849 W. R. Birt in J. F. W. Herschel Man. Sci. Enq. (Lords Commissioners Admiralty) x. 341 Ships by the way of the Cape of Good Hope should commence the three-hourly series [of barometric observations].., in order that the phenomena of the tropical depression..may be well observed. 1908 Official Year Bk. Commonw. Austral. 1901–1907 119 The third agent associated with the production of rain is the tropical depression more popularly known as the ‘monsoonal depression’. 1990 Area 22 107 As it [sc. Hurricane Gilbert] moved inland..it was finally downgraded to a tropical depression. 2006 N.Y. Post (Nexis) 14 July 20 Many tropical depressions will form and a few will turn into hurricanes. < as lemmas |
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