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SEASONAL CHANGES AND SEASONAL CHANGES OF THE EARTH LEARNING DEVICES FOR LEARNING
SEASONAL CHANGES AND SEASONAL CHANGES OF THE EARTH LEARNING DEVICES FOR LEARNING
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机译:学习的地球学习设备的季节变化和季节变化
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摘要
The present invention relates to a seasonal change learning apparatus and a seasonal change learning apparatus, and more particularly, to a seasonal change learning and seasonal change learning apparatus capable of easily and easily learning day and night length, shadow length, / RTI
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