Three As三个自动化
threenum.三n.三;三个adj.三个的
three-feet line三英尺线,跑垒限制线
Three Gorges base三峡基地
three-shear ram三岁公羊
three folding bed三折病床
three-state bus三态总线
three-way piece三通接头
three- way duel三方对决
three wire method三线测螺纹法
three reflections三观
threefold element阈(值)元件