The negative accumulated temperature decreased obviously during the over-wintering period.
冬小麦越冬期负积温明显减少。
The principal biological characteristics and the effective accumulated temperature were studied.
本文研究了该螨的主要生物学特性和有效积温。
The principal biological characteristics and the effective accumulated temperature were studied.
本文研究了该螨的主要生物学特性和有效积温。
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