
A Chinese high-speed train set another world speed record during a test run Friday, breaking its own record set just two months ago. The Chinese Ministry of Railways calls the feat “a major achievement of China’s technology innovation,” but doubts linger over just how much of China’s bullet-train technology can be described as its own.

This new world record was accomplished during the test run for a train called the CRH380A. According to a report by state-owned Xinhua News Agency, the train hit a topspeed of 486.1 kilometers, or 302 miles, per hour on the tracks between Zaozhuang City of Shandong Province and Bengbu City in eastern Anhui Province, part of a new high-speed rail line that will eventually link Beijing and Shanghai.
Read more here: WSJ blog