矿石的主要结构是隐晶质结构、胶状结构、显微鳞片结构及砂质结构。
The textures of the manganese-silver ore include aphanitic, colloform, micro-squama and arenaceous textures, and its structures are mainly the vein, colloform and disserminated structures.
针对与砂质海岸在波浪作用下的演变有关的波浪、近岸流及输沙问题进行了系统的研究，并对结构物附近海岸演变进行了数值模拟。
The systematic study has been made on the problems of wave, nearshore currents, sediment transport related to the coastal evolution of sand beach under the action of wave.
本文对黄河三角洲的砂质壤土及砂质粘壤土的部分物理特性，在二维空间平面上的空间变异结构做了初步探讨。
The two-dimensional space variability of some physical properties of sandy loam and sandy clay loam in the Yellow River Delta was investigated.
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