短語詞組短語bypass flow ratio 旁流比value of bypass flow ratio 旁流比ultra -high bypass-ratio 超高旁通比BPR Bypass Ratio 函道比low bypass ratio 低旁通比bypass ratio turbofan 涵道比渦扇high bypass ratio 大涵道比variable bypass ratio engine 變涵道比發(fā)動機bypass ratio range 函道比範圍 返回 bypass ratio