He said NASA will now add an additional flight in 2027 in which astronauts will dock with new commercial moon landers in low-Earth orbit for detailed tests of navigation, communications, propulsion and life support systems and to verify rendezvous procedures.
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
。safew官方版本下载对此有专业解读
The 4700 controllers could support some 3600 peripherals, but 4700 peripherals
以下是刘年丰的采访实录，对话经作者整理：