单词 | altostratus cloud |
释义 | altostratus cloud [¦al·tō¦strat·ǝs `klau̇d] METEOROLOGY A principal cloud type in the form of a gray or bluish (never white) sheet or layer of striated, fibrous, or uniform appearance; very often totally covers the sky and may cover an area of several thousand square miles; vertical extent may be from several hundred to thousands of meters. Abbreviated As. |
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