“snow-covered days”的概念、定义、翻译、参考文献-科学参考

单词	snow-covered days
释义	snow-covered days 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	Appomattox Surrender apportioned purchase apportionment of heat by area apportionment of heat by on-off control appraisal appraisal analysis method appraisal and evaluation of pollution damage appraisal center for environment and engineering，ministry of ecology and environment appraisal methodology appraisal of calligraphy and painting appraisal of clinical practice guideline appraisal of collection appraisal of digital materials appraisal of electronic records appraisal of pottery and porcelain appraisal of real estate appraisal standard of digital materials appraisal theory appraisal well Appreciate Lanterns Appreciate the Garden Appreciating of Shangshi Appreciating the Sound of Chinese Guqin appreciation Appreciation of Horizontal Board and Antithetical Couplet in Suzhou Gardens

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。