Updated: June 9, 2020 13:59Xinhua/english.www.gov.cn
The underwater glider Haiyi 7000. China's independently developed underwater glider Haiyi (which translates to "sea wings"), developed by the Shenyang Institute of Automation under the Chinese Academy of Sciences, is used to monitor vast areas of the deep-sea environment, such as seawater temperature, salinity, turbidity, chlorophyll and oxygen content. In October 2018, Haiyi 7000 reached a depth of 7,076 meters in the Mariana Trench, the world's deepest known trench. [Photo/Xinhua]
A photo taken on July 28, 2018 shows the underwater glider Haiyi on China's Icebreaker Xue Long, or Snow Dragon, at the Bering Sea. China's ninth Arctic Expedition Team made a successful launch of the autonomous underwater glider Haiyi in the Bering Sea on July 28, 2018. China's independently developed underwater glider is used to monitor the deep-sea environment in vast areas. [Photo/Xinhua]
Researchers from the Chinese research vessel Kexue, or Science, place a submersible buoy in the west Pacific Ocean on Dec 10, 2017. There are 20 sets of submersible buoys and three sets of large floating buoys in China's observation network for scientific research over the western Pacific, which has acquired deep-sea data for six consecutive years. In 2019, China has achieved real-time transmission of deep-sea data through its self-developed BeiDou satellites for the first time, a move essential to more secure, independent and reliable deep-sea data transmission. [Photo/Xinhua]