短语
初终霜冻日异常
Unusual first and last frost days
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early frost
- 引用次数:1
参考来源 - 东北三省玉米初霜冻时空分布特征及预报方法探讨 Discussion on Temporal and Spatial Characteristics of Early Frost and Its Forecasting Method of Maize in the Three Northeastern Provinces
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