two-DE双向电泳
twonum.二;两个
two-way ribbed slab floor双向密肋楼盖
two-dimensional harmonics二维谐波
two phase anaerobic process两相厌氧
two-phase aqueous systems双水相
two hundred and eighty four(=284) 二百八十四
two-frequency half duplex双频半双工系统
Two ring type gear reductor二环减速器
two cavity ring type filter双腔式环状滤波器
two-phase thermo-siphon两相热虹吸
two - dimensional objects二维散射体