“mine ventilator”的概念、定义、翻译、参考文献-科学参考

单词	mine ventilator
释义	mine ventilator Encyclopedia 工学矿井通风系统释 mine ventilator矿井通风机矿井通风用的机械。工学矿山机械释 mine ventilator矿用通风机向矿山井下压入新鲜空气或抽出井下被污染空气的机械设备。又称扇风机。
随便看	upper semi-lattice upper semi-modular lattice upper semisphere upper series upper set upper side frequency Upper Silesia Coalfield upper singular exponent upper solution upper solution; supersolution upper-stage upper stage liquid rocket engine upper strong derivative upper subsemilattice upper sum upper surface upper tangent arc upper topological limit upper transit upper triangular group upper triangular matrix upper-trimmed subsequence upper type upper unitriangular matrix upper urinary tract infection

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