“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	full faithful functor full flag full flag structure full-floating mandrel mill full-flow staged combustion liquid rocket engine full form full form sculpture full-frame CCD full frame digital camera full functor full grain leather full group full group of automorphisms Full History of Great Vietnam full homomorphism full hybrid electric full-hydraulic power control system full image full imbedding full implicit method fulling full inhomogeneous Lorentz group full invariance full invariant series full invariant subgroup

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。