“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	Chemical Process Design Handbook chemical processes for water pollution chemical processing engineering of forest products Chemical Processing Engineering of Forest Products, Beijing Forestry University Chemical Processing Engineering of Forest Products, Central South University of Science and Technology Chemical Processing Engineering of Forest Products, Nanjing Forestry University Chemical Processing Engineering of Forest Products, Northeast Forestry University Chemical Processing Engineering of Forest Products, Northwest Agriculture and Forestry University Chemical Processing Engineering of Forest Products, Southwest ForestryUniversity chemical processing of coal wastewater chemical process of marine pollutant chemical process of water pollution chemical process safety chemical process systems analysis chemical production business process reengineering chemical production decision support system chemical production enterprise chemical production risk assessment chemical propellant chemical properties of ceramics chemical property of wood chemical protective clothing chemical qualitative identification of crude drug chemical quantity sensor chemical reaction

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。