pneumatic system的用法和樣例：
例句
- Lubricator is an element which can provide good lubrication for pneumatic system,with novel structure and easy adjustment of oil drip.
油零器是氣動系統中提供中提供潤滑作用的元件，具有設計新穎，調節方便等優點。 - Hydraulic systems operate in oil within a closed system with fewer moving parts than a pneumatic system causing less contamination lowering maintenance costs.
液壓系統工作在封閉的油環境中，相對氣動系統活動部件比較少使得污染較少，降低了維護成本。
