News Snapshot: The Wenhai-1, developed for the Qingdao Institute of Marine Geology of the China Geological Survey, is the country's first autonomous unmanned deep-sea probe that features functions such as wide-range autonomous cruise detection and precise remote control spot sampling. [Photo/CCTV News] BEIJING -- A remote-controlled underwater robot that can dive as deep as 6,000 meters has passed sea test and been delivered to its user, according to the Shenyang Institute of Automation (SIA) of the Chinese Academy of Sciences, the developer of the robot. The Wenhai-1, developed for the Qingdao Institute of Marine Geology of the China Geological Survey,...