| 释义 |
crystal systemn. each of seven distinct symmetrical forms (cubic, tetragonal, orthorhombic, trigonal, hexagonal, monoclinic, and triclinic) into which crystals can be classified according to the relations of their axes. 晶系(晶体七种不同的对称形状之一，即立方晶系、四方晶系、斜方晶系、三方晶系、六方晶系、单斜晶系和三斜晶系) |