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单词 undercast
释义

undercast


undercast

(ˈʌndəˌkɑːst) n (Civil Engineering) a passage of air under a road or mine

undercast


undercast

[′ən·dər‚kast] (meteorology) A cloud layer of ten-tenths (1.0) coverage as viewed from an observation point above the layer; the term is used in pilot reporting of in-flight weather conditions. (mining engineering) An air crossing in which one airway is deflected to pass under the other airway.
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更新时间:2025/2/27 17:52:00