“积雪日数”的概念、定义、翻译、参考文献-科学参考

单词	积雪日数
释义	积雪日数 Encyclopedia 农学积雪日数释 snow-covered days积雪日数对于积雪日的定义，在中国积雪研究中存在两种标准，第一种是根据天气现象来定义，即当观测场上视野范围内一半以上被积雪覆盖时，就记为积雪日；第二种是根据积雪深度来定义，即当积雪面积达到观测要求，且其深度达到规定深度（例如0.5厘米以上深度的积雪）时，记为积雪日。
随便看	Sculptor galaxy Sculptor group Sculptorids sculptors of Five Dynasties sculptors of Liao,Jin and Yuan dynasties sculptors of Song Dynasty sculptors of Sui and Tang Dynasties Sculptor supercluster Sculptor system Sculptor void Sculpture Sculptured Hills sculptured velvet Sculpture from the pre-Angkor period Sculpture in the Parthian Empire sculpture landscape Sculpture Museum of Copán，Honduras sculpture of Qin Dynasty Sculpture of Senenmut with Nefrua sculpture park sculpture restoration Sculptures at Changqing Lianhua Caves Sculptures in Fengguo Temple sculptures in Guangsheng Temple sculptures in Huayan Temple

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