短語詞組短語phase center variation 相位中心變化Phase velocity variation 相速度變化phase retardation variation 相位延遲變化phase variation center 相位中心變化Phase variation process 型變進(jìn)程Wavefront phase variation 波前相位差original phasederivative phase variation 原相music phase variation 樂句變唱random phase variation 隨機(jī)相位變化 返回 phase variation