Last Updated
：2025/11/24
ECO
Noun
US
abbreviation
alt-of
initialism
Japanese Meaning
NASAの用語で、ロケットのエンジンが停止（カットオフ）される現象を指す略語（エンジンカットオフ）
（ plural ）
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(US, astronautics) Abbreviation of engine cut-off or engine cutoff. (a NASA term for when rocket engines are shut down)
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ECO
The mission controllers confirmed an ECO at T+8 minutes, indicating the first stage engines had shut down as planned.
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The mission controllers confirmed an ECO at T+8 minutes, indicating the first stage engines had shut down as planned.
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