China took back a coveted computing crown from the United States on Tuesday, ratcheting up a fierce technological competition that has implications for science, national security and geopolitics. 周二，中国从美国手中夺回了令人垂涎的计算桂冠，令这场对科学、国家安全及地缘政治均具深远影响的技术竞赛愈演愈烈。 LineShine…