fail-safe是什么意思？

fail-safe

英[feɪl seɪf] 美[feɪl seɪf]

• n. 自动防故障装置；
• adj. 自动防故障装置的；

柯林斯高阶英汉双解学习词典释义

• ADJ
  有自动保险装置的;具有自动防故障性能的
  Something that is fail-safe is designed or made in such a way that nothing dangerous can happen if a part of it goes wrong.
  例句
  The camera has a built-in failsafe device which prevents it from working if the right signals aren't received. 照相机有内置自动防故障装置，该装置确保相机在未接到正确信号时不会启动。

英英词典释义

• Adjective
  1. guaranteed not to fail;
  "a fail-safe recipe for cheese souffle"
  2. eliminating danger by compensating automatically for a failure or malfunction;
  "a fail-safe device in a nuclear weapon to deactivate it automatically in the event of accident"

行业词典

• 电工： 保安性；
  铁道： 故障-安全；