1月26日，第28届天津市青少年科技创新大赛中，一名中学生在展示“铁矿磨矿分级用旋流器的研究”科技创新成果。当日，第28届天津市青少年科技创新大赛在天津科技馆举行，从近万项参赛作品中初选出的524项中小学生科技创新成果和206项小学生创新方案进行现场终评答辩。从工厂选矿设备革新到一把多功能漏勺，源自生活的“小发明”充满了大胆的想象和奇妙的构思。新华社发（李想 摄） On January 26,,At the 29th tianjin youth science and technology innovation contest,A high school student in the show"Iron ore grinding classification with cyclone research"Science and technology innovation achievements.the,At the 29th tianjin youth science and technology innovation contest held in tianjin science and technology museum,Nearly entries from a primary elected a 524 primary and middle school students' science and technology innovation achievements and 206 items of primary school students innovative solutions on the site administrator sig gissler defense.From the factory preparation equipment innovation to a multi-function colander,Comes from life"Small invention"Filled with bold imagination and fantastic idea.The xinhua news agency hair(LiXiang perturbation)

    1月26日，第28届天津市青少年科技创新大赛中，一名中学生在展示只有5元钱成本的“多功能显微数码摄影接环”科技创新成果，该接环可将不同类型的数码相机与显微镜连接。新华社发（李想 摄）     On January 26,,At the 29th tianjin youth science and technology innovation contest,A high school student in display only 5 yuan cost"Multi-function microscopic digital photography shackle"Science and technology innovation achievements,The joint ring can be different types of digital camera and microscope connection.The xinhua news agency hair(LiXiang perturbation)

   1月26日，第28届天津市青少年科技创新大赛中，一名小学生在进行终评答辩时向专家评委介绍“多功能漏勺”创新方案。新华社发（李想 摄）    On January 26,,At the 29th tianjin youth science and technology innovation contest,A pupil in reply to the administrator sig gissler expert judges is introduced"Multi-function colander"Innovative solutions.The xinhua news agency hair(LiXiang perturbation)

   1月26日，第28届天津市青少年科技创新大赛中，一名小学生在进行终评答辩时向专家评委介绍低能耗的LED“楼梯地面串灯”创新方案。新华社发（李想 摄）    On January 26,,At the 29th tianjin youth science and technology innovation contest,A pupil in reply to the administrator sig gissler when experts introduced low-energy LED"Stair ground lamp set"Innovative solutions.The xinhua news agency hair(LiXiang perturbation)