1955年,在全国少年儿童科学技术和工艺作品展览会上,天津十六中学初二学生制作了牵引式滑翔机。摄影 李兰英In 1955, at the National Exhibition of Children's Science and Technology and Craft Works, the second junior high school students of Tianjin No. 16 Middle School made a towed glider. Photo/Li Lanying
