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单词 instability
释义 instability
[´in·stǝ`bil·ǝd·ē]
CONTROL SYSTEMS
A condition of a control system in which excessive positive feedback causes persistent, unwanted oscillations in the output of the system.
PHYSICS
A property of the steady state of a system such that certain disturbances or perturbations introduced into the steady state will increase in magnitude, the maximum perturbation amplitude always remaining larger than the initial amplitude.
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