Reflectivity Displacement Method (RDM) is a classical algorithm of Synthetic Aperture Radar (SAR) autofocus processing, whose performance degenerates with low contrast of the scene.
反射率偏移法（RDM）是合成孔径雷达（SAR）自聚焦的经典算法，当场景对比度较低时，RDM自聚焦效果变差。
The features of educational narrative research are natural scene, reflectivity, openness and interpretation of meaning.
自然情境性、反思性、开放性、意义诠释性是教育叙事研究的特点。
The features of educational narrative research are natural scene, reflectivity, openness and interpretation of meaning.
自然情境性、反思性、开放性、意义诠释性是教育叙事研究的特点。
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