“blind valley”的概念、定义、翻译、参考文献-科学参考

单词	blind valley
释义	blind valley [`blīnd `val·ē] ^GEOLOGY A valley that has been made by a spring from an underground channel which emerged to form a surface stream, and that is enclosed at the head of the stream by steep walls.
随便看	bell mouth bell nipple bellows bellows expansion joint bellows gage bellows gas meter bellows seal bells and whistles bell screw bell-shaped curve Bell's law bell socket Bell's theorem bell tap bell transformer bell-type manometer bell wire belly Belondiroidea belonephobia Beloniformes belonite Belostomatidae below minimums belt

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