短語詞組短語law of snow accumulation 積雪規(guī)律snow accumulation WESTBANK 積雪Snow accumulation prediction algorithm 表面預(yù)測算法snow accumulation rate 雪積累速率Accumulation snow 積雪j īksyut accumulation of snow 積雪light accumulation of snow 輕微積雪accumulation of snow 積雪 返回 snow accumulation