1. The microcrystalline structure of the mineral gives it a unique appearance under the microscope.（这种矿物的微晶结构在显微镜下呈现出独特的外观。）
2. The microcrystalline structure of the ceramic material allows it to have superior mechanical properties.（陶瓷材料的微晶结构使其具有卓越的力学性能。）