demonstrationn.示范;表达;实证;示威游行
demonstration expense[经] 示范费, 展出费
demonstration machine示教机
demonstration of robot机器人示教
Demonstration practice示范工作
demonstration teaching示范教学
demonstration activity示范活动
demonstration engineer示范工程师
demonstration thinking证明思维
Demonstration Research实证研究
Demonstration Projects示范工程