对甘蓝型油菜隐性上位细胞核雄性不育纯合两型系、临保系和全不育系的转育方法进行了介绍。
The paper introduces the breeding methods of the homozygous two-type line, temporary maintainer line and complete sterile line with a recessive epistasis nuclear male sterile.
本文对合浦滨海和海滩森林土壤微生物区系的分布、数量、组成及生化活性进行了研究。
In this paper the distribution, quantity and composition of the microbiological flora and the biochemical activities of the forest soil in coastal beach of Hepu were studied.
本文通过对合交换半群概念的引入，对MV-代数建立了几组等价公理系，对原有的公理系进行了较好的简化。
In this paper, we introduce the notion of involution commutative semi-group, and give some equivalence axioms of MV - algebras.
本文通过对合交换半群概念的引入，对MV-代数建立了几组等价公理系，对原有的公理系进行了较好的简化。
In this paper, we introduce the notion of involution commutative semi-group, and give some equivalence axioms of MV - algebras.
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