“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	impression cylinder imprint imprinter imprinting imprisoned incompleteness improper divisor improper fraction improper integral improperly posed problem improper orthogonal transformation improvement factor improvement threshold improvised grenade improvised mine impsonite impulse impulse approximation impulse excitation impulse face impulse function impulse generator impulse modulation impulse movement impulse noise impulse pallet

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