array of spheres造句

例句与造句

1. using self-assembly to produce three-dimensional photonic crystals is the more feasible method . but making perfect crystalline arrays of sphere is not easy . invariably, random ( bad ) defects occur within the lattice
   制备三维光子晶体的方法中，自组织法是最有实际意义、应用最广泛的方法，但是此方法难于控制晶体的生长过程，所制备的胶体晶体通常呈多晶结构。
2. It's difficult to find array of spheres in a sentence. 用array of spheres造句挺难的