准晶作为一种新的固态物质结构给传统的凝聚态物理学带来了深刻的变革，其弹性基本方程比传统晶体的弹性基本方程要复杂得多。
As a new structure of solid matter quasicrystal brings profound new ideas to the traditional condensed matter physics, its elastic equations are more complicated than that of traditional crystal.
液晶是介于完全规则的晶体和各向同性的液体之间中间态的一种物质，其特性与结构介于固态晶体与各向同性液体之间。
Liquid crystal is a kind of instar matter between completeness inerratic crystal and isotropic liquid. Its characters are between the solid crystal and the isotropic liquid.
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