一级日本牲交大片好爽在线看,18禁裸乳无遮挡自慰直播网站,自拍偷区亚洲网友综合图片,看骚逼Tv,Com,天天干天天屌天天草,五月激情六月丁香,欧美熟妇vdeoslisa18

Chinese research vessel departs for seamounts in Mariana Trench

Source: Xinhua| 2019-05-18 21:52:21|Editor: Yamei
Video PlayerClose

CHINA-SHANDONG-QINGDAO-RESEARCH VESSEL-DEPATURE (CN)

Aerial photo taken on May 18, 2019 shows Chinese research vessel Science waiting to depart from the city of Qingdao, east China's Shandong Province. Chinese research vessel Science left the eastern city of Qingdao Saturday, on an expedition to the little-known seamounts in the Mariana Trench, the world's deepest natural trench. Researchers will study the topography, hydrology and bioecology of the western Pacific Ocean's typical seamount, said Xu Kuidong, chief scientist of the mission with the Institute of Oceanology of the Chinese Academy of Sciences. (Xinhua/Li Ziheng)

   Prev 1 2 3 4 5 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011103261380696861