常見例句雙語例句To reduce the main pollutant of the diesel engine(particle and NOx), this paper designs the automatic controller by using the bag filter and Exhaust Gas Recirculation technology.爲減少柴油機的主要排放汙染物（微粒和氮氧化物） ，研制了自動控制器（採用袋濾器以及廢氣再循環(huán)技術(shù)）。Schemes of variable compression ratio (VCR), variable exhaust gas recirculation (EGR), variable exhaust valve timing, and EGR with stratification by tumble charge flow are recommended.推薦可變壓縮比（VCR）方案、可變廢氣再循環(huán)率（EGR）方案、可變排氣門關(guān)閉時刻方案，以及廢氣再循環(huán)滾流分層充氣方案等。The annual total cost of optimum design decreased by 20.8% than that of conventional design without EGR, 14.3% than that of conventional design when exhaust gas recirculation ratio was 0.2.對溼空氣出口溫度和廢氣循環(huán)比進行優(yōu)化設(shè)計，比無廢氣循環(huán)的常槼設(shè)計節(jié)省年縂費用20．8%，比循環(huán)比爲0．2時的常槼設(shè)計節(jié)省年縂費用14．3%。權(quán)威例句One is exhaust gas recirculation, which pumps cooled exhaust back into the engine air intake, lowering the combustion temperature and reducing NOx formation.FORBES: Clearing the Air 返回 exhaust gas recirculation