火箱子全是烟，还需要更多空气助火势？
火箱，燃烧室一种燃料在里面燃烧的内室，例如蒸汽机车的燃烧室。
A chamber, such as the furnace of a steam locomotive, in which fuel is burned.
介绍了外火箱矩形竖窑进火孔改造前的使用情况以及改造的必要性；
This article introduces the application of fire entry hole of rectangle kiln with outer fire box before reconstructing and the necessity of reconstruction.
之前我已经有意识地把北京电影制片厂的烟火箱子放在入口的地方，而且也把租的公交车停在显眼的地方。
Id purposefully placed the box of pyrotechnics from Beijing Film Studios at the entrance and made sure the public bus wed rented was in an obvious location.
之前我已经有意识地把北京电影制片厂的烟火箱子放在入口的地方，而且也把租的公交车停在显眼的地方。
Id purposefully placed the box of pyrotechnics from Beijing Film Studios at the entrance and made sure the public bus wed rented was in an obvious location.
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