“winter drought of pasture”的概念、定义、翻译、参考文献-科学参考

单词	winter drought of pasture
释义	winter drought of pasture Encyclopedia 农学黑灾释 winter drought of pasture黑灾冬春季节积雪过少或无积雪，牲畜长期缺乏饮水，造成膘情下降、母畜流产、疫病流行，甚至大批牲畜死亡的灾害。与冬春因长时期积雪过多过厚而发生的“白灾”相对。又称渴灾。
随便看	nilpotent ideal nilpotent index nilpotent Lie algebra nilpotent Lie group nilpotent Lie group representation nilpotent linear operator nilpotent linear transformation nilpotent matrix nilpotent number nilpotent operator nilpotent orbit nilpotent part nilpotent product nilpotent radical nilpotent ring nilpotent ring (algebra) nilpotent semigroup nilpotent set nilpotent space nilpotent subalgebra nilpotent subgroup nilpotent subset nilpotent superalgebra nilpotent symmetric space nilpotent transformation

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