| 单词 | mariner 2 |
| 释义 | Mariner 2Mariner 2(ma -ră-ner) A 202-kg US probe that made the first successful planetary flyby, 34 830 km from Venus, on Dec. 14 1962. Its flight confirmed the existence of the solar wind and measured Venus' temperature, but did not detect a Venusian magnetic field. |
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