单词 | Pickering, William Hayward |
释义 | William Hayward Pickering/ˈpɪkərɪŋ / (1910–2004), New Zealand-born American engineer, director of the Jet Propulsion Laboratory at the California Institute of Technology 1954–76. During his directorate the laboratory launched America’s first satellite, Explorer I (1958), and several unmanned probes to the moon and planets. |
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