axial fan的用法和樣例：
例句
- Press-in style means the fan situated in front of the bag-house,which works at positive pressure.
壓入是式風機位於除塵器之前，除塵器為正壓工作。 - Because of their efficiency, compactness, and simplicity of installation, axial flow fans have become increasingly used in recent years.
由於它們效率高，體積小，裝配簡易，軸流式通風機近些年來使用得越來越多了。
