perturbation
柯林斯词典
1. N-VAR A perturbation is a small change in the movement, quality, or behaviour of something, especially an unusual change. (尤指不寻常的)小变化[技术]
...perturbations in Jupiter's gravitational field. ...木星重力场的微小变化。
2. N-UNCOUNT Perturbation is worry caused by some event. 忧虑; 不安[正式]
This message caused perturbation in the Middle East Headquarters. 这个消息在中东总部引起了不安。
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perturbation /ˌpɜːtəˈbeɪʃən/ (perturbations)
剑桥词典
perturbation noun (WORRY)
[ 不可数或单数名词：没有复数形式的名词 ] formalworry
担心；烦恼
perturbation noun (CHANGE)
[ 可数名词：有复数形式的名词 or 不可数或单数名词：没有复数形式的名词 ] physics specializeda small change in the regular movement of an object
摄动；扰动
Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846. 天王星轨道的摄动使人们于1846年发现了海王星。 返回 perturbation