Mercury program

英 美
  • 水星计划
  • mercury n.水银;(M~)水星;精神
  • program n.节目;计划;程序;课程;节目单vt.编制程序;安排;指定
Noun:
  1. a program of rocket-powered flights undertaken by US between 1961 and 1963 with the goal of putting a man in orbit around the earth;

    "under the Mercury program each flight had one astronaut"