“natural ventilation”的概念、定义、翻译、参考文献-科学参考

单词	natural ventilation
释义	natural ventilation [`nach·rǝl ´vent·ǝl`ā·shǝn] ^{MINING ENGINEERING} The weak and varying ventilation in a mine caused by the difference in air density between shafts.
随便看	erase oscillator erasing head erasing speed erathem erbia erbium erbium halide erbium nitrate erbium oxalate erbium oxide erbium sulfate erbon erect image erecting lens erecting prism erection erection bolt erection stress erection tower erector erect stem Eremascoideae haulage haulage conveyor haulage curve

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