vent systems的用法和樣例：
例句
- For example, adding catalytic converters to car exhaust systems has reduced some forms of air pollution.
例如，給汽車(chē)排氣系統添加廢氣凈化器可以降低空氣污染的一些方法。 - In areas where air contamination occurs during production, there shall be adequate exhaust systems or other systems adequate to control contaminants.
在生產(chǎn)中會(huì )發(fā)生空氣污染的區域，須提供充足的排氣系統或其他足以控制污染物的系統。
