vent systems的用法和样例：
例句
- For example, adding catalytic converters to car exhaust systems has reduced some forms of air pollution.
例如，给汽车排气系统添加废气净化器可以降低空气污染的一些方法。 - In areas where air contamination occurs during production, there shall be adequate exhaust systems or other systems adequate to control contaminants.
在生产中会发生空气污染的区域，须提供充足的排气系统或其他足以控制污染物的系统。
