英文题目：CHINA’S MILITARY COULD LEAVE U.S. NAVY DEAD IN THE WATER WITH NEW SEA DRONES
The glider was developed by the state-run Chinese Academy of Sciences, which previously tested it in March, during which it reportedly broke a previous deep-diving record set by the U.S. The academy said Haiyi was able to swim to a depth of over 20,764 feet, or nearly 4 miles down, beating the U.S.-held world record of over 16,964 feet, or about 3.7 miles. Using a unique battery and a special coat to protect it from over 60 tons of underwater pressure, it also broke records in 2014 by swimming over 635 miles nonstop in 30 days, China Daily reported. Chinese military media have already speculated the country’s armed forces could put Haiyi to military use.
“Since there is no power propulsion, the acoustic signature is extremely low. That characteristic suggests that [this platform] can have great significance for the military domain,” Chinese defense magazine Ordnance Industry Science and Technology wrote last year, according to The National Interest.