three R's背环
threenum.三n.三;三个adj.三个的
three set space diversity三重空间分集
Three Gorges-Gezhou Dam三峡-葛洲坝水利枢纽
Three layers of structure三层结构
three address instruction三地扯指令
three-electrode furnace三极电炉
three-axis rotary table三轴转台
three dimensional warfare海陆空联合作战; 主体战争
three phase fluidized bed[化] 三相流化床
three figurative cultures三喻文化
three-meter springboard3米跳板