中文幕亚洲精品乱码色偷偷亚_国产午夜性爽视频男人的天堂_欧美高潮流白浆喷水在线观看_亚洲夜色久一久二亚洲琪琪卡一卡二_暖暖亚洲一区二区三区AV无码

Students experience 3D printing at course in Qingdao, E China's Shandong

Source: Xinhua| 2018-06-01 17:01:45|Editor: Li Xia
Video PlayerClose

#CHINA-SHANDONG-QINGDAO-3D PRINTING COURSE (CN)

Students look at their 3D printing products at a 3D printing course at Changjiang School in Jimo District of Qingdao City, east China's Shandong Province. 3D printing principle and modeling technology were introduced to the students at the course. (Xinhua/Liang Xiaopeng)

   Prev 1 2 3 4 Next  

KEY WORDS: 3D printing
EXPLORE XINHUANET
010020070750000000000000011100001372232451