The 14 Bravais Lattices
14 种布拉维格子
Most solids have periodic arrays of atoms which form what we call a crystal lattice. Amorphous solids and glasses are exceptions. The existence of the crystal lattice implies a degree of symmetry in the arrangement of the lattice, and the existing symmetries have been studied extensively. A crystal structure is one of the characteristics of minerals.
大多数固体具有周期性排列的原子，形成我们称之为晶体晶格的结构。非晶固体和玻璃是例外。晶体晶格的存在表明晶格排列中存在一定程度的对称性，而现有的对称性已得到广泛研究。晶体结构是矿物的一个特征。
One of the implications of the symmetric lattice of atoms is that it can support resonant lattice vibration modes. These vibrations transport energy and are important in the thermal conductivity of non-metals, and in the heat capacity of all solids.
原子对称晶格的一个结果是它可以支持共振晶格振动模式。这些振动传输能量，并在非金属的热传导以及所有固体的热容量中起重要作用。
References
Myers
Ch 2
Kittel, Intro to Solid State
Ch 1
索引参考Myers第2章，Kittel《固体物理导论》第1章
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