Global S&T Development Trend Analysis Platform of Resources and Environment
分面浏览：来源平台 |
| 当前检索式 | ((ALL：spring frost)) |
| 限定条件 | ((发表日期：2020) AND (文献类型：新闻)) |
| EurekAlert 2 | Science Daily 2 | Centre for Ecology & 1 |
| EurekAlert! 1 | European Space Agenc 1 | German Aerosapce Cen 1 |
| Royal Meteorological 1 | Scientific American 1 | The Water Council 1 |
