本文阐述喀斯特沉积物中稀土分布模式的精细结构—稀土四重效应特征及其研究意义。
In this paper the fine structure of the distribution model of REE in Karst deposits-the tetrad effect and its meaning are discussed.
使用TEM研究了钢中贝氏体的精细结构及碳化物的形貌与分布，加入微量元素使贝氏体铁素体组织明显细化。
The fine structure of bainite and the morphology and distribution of carbides in steels were investigated with TEM.
使用TEM研究了钢中贝氏体的精细结构及碳化物的形貌与分布，加入微量元素使贝氏体铁素体组织明显细化。
The fine structure of bainite and the morphology and distribution of carbides in steels were investigated with TEM.
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