unstable ion不稳定离子unstableadj.不稳定的；易变的unstable limit cycle不稳定极限环unstable rock masses危岩体unstable inheritance不稳定遗传性unstable oscillation不稳定振荡unstable coordinates不稳定坐标Unstable personality不安定型人格unstable hydrocarbon不稳定的烃Unstable lumbar spine腰椎不稳unstable protobitumen不稳定原沥青Unstable state noises非稳态噪声