Turboprop aircraft are more fuel-efficient than turbofans.
Tips
usage
Aviation-engine vocabulary: 涡桨 (turboprop) vs. 涡扇 wōshàn (turbofan, used on airliners) vs. 涡喷 wōpēn (turbojet) vs. 涡轴 wōzhóu (turboshaft, used on helicopters). All start with 涡 (wō, 'vortex/turbine').