就是将故障/失败控制在一定范围内。一般我们用 fail safe 这个词。
A fail-safe in engineering is a design feature or practice that in the event of a specific type of failure, inherently responds in a way that will cause no or minimal harm to other equipment, the environment or to people.

A system's being "fail-safe" means not that failure is impossible or improbable, but rather that the system's design prevents or mitigates unsafe consequences of the system's failure. That is, if and when a "fail-safe" system "fails", it is "safe" or at least no less safe than when it was operating correctly

https://en.wikipedia.org/wiki/Fail-safe

fail safe 或者 fail-safe是一个动词，见以下英文字典的解释。


fail safely是fail safe的误写。


fail safe中文是什么意思_fail safe中文翻译是:事故保险;不出故障的;故障 ...
www.ichacha.net › 英语翻译
fail safe的中文意思：:事故保险;不出故障的;故障自动保险;安全的;可靠的;防错;故障自动防护的;事故保障装置;具有失效保护的;工作可靠的;故障保险;失效保险;保险的; ..
http://www.dictionary.com/browse/fail-safe

adjective
1.
Electronics. pertaining to or noting a mechanism built into a system, as in an early warning system or a nuclear reactor, for insuring safety should the system fail to operate properly.
2.
equipped with a secondary system that insures continued operation even if the primary system fails.
3.
(sometimes initial capital letter) of, relating to, or designating a system of coded military controls in which bombers dispatched to a prearranged point as part of a standard operating procedure cannot advance farther without direct orders from a designated authority and cannot have the nuclear warheads they carry armed until they have passed their prearranged point.
4.
guaranteed to work; totally reliable:
a fail-safe recipe for a cheese soufflé.


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Note added at 6 hrs (2016-12-13 17:10:24 GMT)
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verb (used with object), fail-safed, fail-safing.
7. to make fail-safe.

供参考

在发生软硬件故障时，程序自动终止。