
oscillations
词源
源自拉丁语 'oscillare'(意为摇摆),经由法语 'oscillation' 进入英语,词尾 -s 表示复数形式。
noun
❶ 指物体或系统在固定位置附近来回重复的运动,常见于物理现象如钟摆摆动或电流波动。
“The pendulum's oscillations gradually slowed down due to air resistance.”
(由于空气阻力,钟摆的摆动逐渐减慢。)
“Scientists measured the oscillations of the bridge during strong winds.”
(科学家测量了强风期间桥梁的振动情况。)
❶ 比喻事物在两种状态或观点之间的反复变化,如情绪波动或意见摇摆。
“Her oscillations between optimism and pessimism confused her friends.”
(她在乐观和悲观之间的摇摆让朋友们感到困惑。)
“The stock market showed violent oscillations last week.”
(上周股市出现剧烈震荡。)
常见短语
damped oscillations — 指振幅逐渐减小的振荡,常见于受摩擦力或阻力影响的物理系统。
“The car's suspension system exhibits damped oscillations after hitting a bump.”
(汽车悬架系统在碰到颠簸后会呈现阻尼振荡。)
sustained oscillations — 持续振荡,指振幅保持不变的周期性运动,通常需要外部能量输入。
“The electronic circuit was designed to produce sustained oscillations.”
(该电子电路被设计用于产生持续振荡。)