bow emergence
常見例句
- In the radar echo images the squall line showed herringbone or bow, bull's-eye structure and the main front was associated with thin ribbon weak echo which was the sign of the emergence of gale.
在雷達(dá)回波圖上呈人字形或弧形，有“牛眼”結(jié)構(gòu)，主回波前緣有細(xì)長(zhǎng)帶狀弱回波是出現(xiàn)大風(fēng)的征兆；
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