micropegmatitic structure

例句：

1. 1. The micropegmatitic structure of the rock is responsible for its unique color and texture.
   岩石的微岩脉结构是其独特颜色和纹理的原因。
2. 2.The study of micropegmatitic structures has led to new insights into the formation of minerals.
   对微岩脉结构的研究表明，矿物质的形成有了新的认识。
3. 3.The micropegmatitic structure of the veins is a key factor in determining their economic value.
   矿脉的微岩脉结构是决定其经济价值的关键因素。