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persistent oscillation
construct. 等幅〔持续〕 振荡
met. 持久振荡; 持久振动
oil 等幅振荡
tech. 连续振荡; 等同摆动; 等幅摆动; 非衰减摆动
wind. 持续振荡
persistent oscillations
el. 稳固振荡; 持久振荡; 持续振荡