[TP钱包冷钱包]developed TP500 unmanned freighter makes maiden fli
TP钱包下载502天前 (01-03)
BEIJING, June 18 (Xinhua) -- China's homegrown TP500 unmanned freighter completed a successful maiden flight Saturday, announced the Aviation Industry Corporation of China (AVIC). The freighter conducted a 27-minute maiden flight and perf...