结果表明，晶格对称结构和空气孔形状对带隙大小有影响。
The results show that the lattice symmetry and the shapes of the air holes can affect band gap size.
给定晶格对称结构，选择具有相同对称形状的空气孔能得到较大的绝对光子带隙。
Given a lattice symmetry, larger absolute photonic band gap was achieved by selecting an air hole shape of the same symmetry.
非局部体力矩引起应力的非对称性，而非局部体力矩则由原子晶格相互作用形成的共价键所产生的。
The nonlocal body moment causes the stress asymmetric and itself is caused by the covalent bond formed by the reaction between atoms.
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