国产一级免费电影,国产自产在线视频一区,国产一区亚洲,久久国产精品视频,日本美女天天操b,九色激情,成年轻人网站色直接看

China's research vessel KEXUE carries out investigation over seamounts in western Pacific Ocean

Source: Xinhua| 2019-05-31 15:50:22|Editor: zh
Video PlayerClose

(SCI-TECH)CHINA- ABOARD KEXUE-RESEARCHERS-WORK

A researcher deals with samples of sea water on China's research vessel KEXUE (Science) in the western Pacific Ocean, May 29, 2019. KEXUE is carrying out a 20-day long investigation over a series of seamounts in the south of the Mariana Trench in the western Pacific Ocean. They will focus on biological diversities, ecological systems and biological distributions of the seamounts that they planned to explore. (Xinhua/Zhang Xudong)

   Prev 1 2 3 4 5 6  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001381060921