Timing and extent of chilling in May were considered to improve the calculating method of cold accumulated temperature and establish cold accumulated equivalent temperature.
并根据低温对水稻影响的原理，综合考虑低温发生的不同时段和低温程度对冷积温的意义，改进了冷积温计算方法，创建了当量冷积温。
Timing and extent of chilling in May were considered to improve the calculating method of cold accumulated temperature and establish cold accumulated equivalent temperature.
并根据低温对水稻影响的原理，综合考虑低温发生的不同时段和低温程度对冷积温的意义，改进了冷积温计算方法，创建了当量冷积温。
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