“return air level”的概念、定义、翻译、参考文献-科学参考

单词	return air level
释义	return air level Encyclopedia 工学开拓工程释 return air level回风水平用来排出井下采场内污风的主要水平巷道所处的水平。
随便看	Three Zaju Poetic Dramas on the Taiping Rebellion Three Zhus of Jiading school Threlfall threo configuration threo diisotactic polymer threo-diisotactic polymer threo disyndiotactic polymer threo-disyndiotactic polymer threo isomer threonine threo-polymer threose thresher thresher for rice-wheat thresher sharks threshold threshold adjust implant threshold autoregressive model threshold autoregressive model (TAR) threshold Cerenkov counter threshold condition threshold crossing threshold cryptography threshold current threshold current density

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