短语词组短语erratic error 不规则误差;不定误差Erratic subsoil 漂积层;不均一土壤erratic form 漂积层erratic missile 飞行异常飞弹;偏离预定弹道的导弹erratic c 古怪的;奇怪的;不规律的;不稳定的erratic current 涡流;不稳定电流Okotoks Erratic 奥柯托克斯漂移erratic series 不规则数列erratic change 不规则变化 返回 erratic