“pocket valley”的概念、定义、翻译、参考文献-科学参考

单词	pocket valley
释义	pocket valley [`päk·ǝt ´val·ē] ^GEOLOGY A valley whose head is enclosed by steep walls at the base of which underground water emerges as a spring.
随便看	tailgate tail house tailing tailings tailings settling tank tail out tail pulley tailrace tail rope tail-rope system tailshaft tail sheave tailstock tail surface tail track system tail warning radar tailwater ditch tailwind taino Tainter gate takedown takedown time takeoff takeoff assist takeoff weight

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