Once the ventilator shaft became blocked, the warehouse quickly filled with fumes.

管一旦堵塞, 仓库很快就充满了烟雾。

Age, period of mechanical ventilator, nasogastric feeding, use of antiacid and antibiotics were related to the development with VAP.

VAP的发生与年龄、机械气时、、抑酸剂及抗生素的应用有关。