The optimal mine ventilation is influenced on multitudinous quota and the pacing factor synthesis.
矿井通风系统优选是受众多定量和定性因素综合的影响。
The optimal mine ventilation is influenced on multitudinous quota and the pacing factor synthesis …
矿井通风系统优选是受众多定量和定性因素综合的影响。

词典释义: