NASA’s space shuttle fleet may seem puny compared to giant rockets of the past, but its 28-year flight history makes it a good measuring stick when it comes to booster match-ups.
与过去这些巨型的火箭相比，航天飞机可能看起来像个“小不点”，但其28年的飞行历史使它成为助推器调配很好的标杆。
NASA’s space shuttle fleet may seem puny compared to giant rockets of the past, but its 28-year flight history makes it a good measuring stick when it comes to booster match-ups.
与过去这些巨型的火箭相比，航天飞机可能看起来像个“小不点”，但其28年的飞行历史使它成为助推器调配很好的标杆。
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