Twodotn.图多特(在美国；西经 110º04' 北纬 46º25')twonum.二；两个two input adder半加器two-leg strut双支脚尾轴架two tone dyeing双色染色Two plate assay双平板鉴定two-coil flow两旋管并流two arm kneader双臂搅拌机two-pass tank双路池two-stage SBR二段SBRtwo mesh filter两网格滤波器two-conductor双导体