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单词 θ89444
释义
the world > action or operation > safety > be safe [verb (intransitive)] > revert to safe condition in failure (1)
to fail safe1948

to fail safe: of a mechanical or electrical device or machine, aircraft, etc., to revert, in the event of failure or breakdown, to a condition…

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更新时间:2025/2/24 8:17:18