qpoBNC²³⁶²¹³⁺¹ 基本例句 拟周期振荡 The theory of Quasi- periodic Oscillation QPO in Low- mass X-ray BinariesLMXB is discussed in this paper. Beat-Frequency Models BFM, including development, are presented in detail. 本文简略地叙述了低质量 X射线双星中准周期振荡 QPO现象的理论解释，对其中的差频模型 BFM和它的一些发展作了较为详细的介绍。 cnki