Ralph Jennings / SCMP — 科技：美国对飞机零部件的出口限制恐进一步推迟中国 C919 商用喷气式飞机项目。中国缺乏关键航空零部件的国内来源。

原标题 · Ralph Jennings / SCMP — Tech:US export restrictions on aircraft components threaten further delays to China's C919 commercial jet programChina lacks domestic sources for critical a…