“valley floor”的概念、定义、翻译、参考文献-科学参考

单词	valley floor
释义	valley floor [`val·ē ´flȯr] ^GEOLOGY The broad, flat bottom of a valley. Also known as valley bottom; valley plain.
随便看	surveillance surveillance approach surveillance radar surveillance satellite survey survey design survey foot surveying altimeter surveying sextant survey instrument survey meter surveyor's compass surveyor's cross surveyor's level surveyor's measure survey traverse survivability survivable route survival curve survival probability survival ratio survivor curve Surwell clinograph susannite suscept

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