two all二平
twonum.二;两个
Two-course teaching“两课”
two-colour hologram二色全息图
two-way travel time两端传播时间
two-step hydrolysis两步水解
two step flocculation二极絮凝
two-layer cable net双层索网
two-cycle generator双周波发电机
two dimensional nucle二维核化
Two-Yellow Cultures“两黄”文化
two-feed plansifter双进料平面筛