gas purifying的用法和樣例：
例句
- The paper introduced secure use and troubleshooting of electrostatic dedusters in producer gas cleaning systems.
介紹了發生爐煤氣凈化系統靜電除塵器的安全使用及事故處理。 - The coke oven gas purification processes for choice and technical tentative idea for the further development of gas purification are put forward.
提出了可供選擇的焦爐煤氣凈化工藝流程以及進一步發展煤氣凈化技術的設想。
