perturbation
英[,pɜːtə'beɪʃ(ə)n]
美[,pɝtɚ'beʃən]
- n. [数][天] 摄动；不安；扰乱
英英释意
- 1. an unhappy and worried mental state;
- "there was too much anger and disturbance"
- "she didn't realize the upset she caused me"
- 2. (physics) a secondary influence on a system that causes it to deviate slightly
- 3. activity that is an intrusion or interruption;
- "he looked around for the source of the disturbance"
- "there was a disturbance of neural function"
- 4. a disposition that is confused or nervous and upset
- 5. the act of causing disorder