中尉承认，通风设备很糟糕。
请问阁下满不满意有关机舱的通风设备？
同时也可为各局矿的运输、通风设备相配套。
It also can match with the transportation and ventilating equipments of coal mine.
不要打开通风设备。
尽管缺乏特殊表皮的强制通风设备，运行的花费还是很低的。
Despite lack of forced ventilation of special envelope seals the running costs are very low.
工作前应开启通风设备，打开室内的门窗保持室内通风良好。
Before work should open ventilation equipment, open indoor door window maintain indoor ventilation.
工作前应开启通风设备，打开室内的门窗保持室内通风良好。
Before work should open ventilation equipment, open indoor door window maintain indoor ventilation.
应用推荐