The interrelation between the signs of the birefringence in the planes of symmetry can be deduced from the index ellipsoid . 各对称面的双折射符号之间的相互关系，可以从标准椭球体推定。
One first forms appropriate linear combinations of the hydrogen ao's and of the carbon ao's to get symmetry adapted orbitals . 首先，要形成氢AO和碳AO的适当的线性组合以得到对称性匹配轨道。
All galaxies formed at the same time, "evolution" refers to the development of structure and to the reduction of symmetry . 所有的星系是同时形成的，所谓“演化”乃指结构的发展和对称性的变化。
Electrons or any other "particle" should display wave properties to preserve the complementary wave-particle symmetry of nature . 电子及其他任何粒子都应该显示波的性质，才能体现自然界波粒互补的对称性。
The existence of the entire charge on the wire is, however, taken into account when we consider the symmetry of the problem . 其实当我们考虑到这一问题的对称性时，导线上所有电荷的存在已经计算在内的了。
note that charge symmetry is not a strong enough condition to deduce the existence of π°; we need charge independence. 请注意：单靠电荷对称性不足以推出的存在，我们还需要电荷无关性。
The property of symmetry can also be used to save a part of the computational effort required for matrix inversion or for a solution of equations . 对称的特性也可用来节省矩阵求逆中或求解方程中所需要的一部分计算量。
Successive occupations had made considerable additions and improvements, each in the taste of his own age, and without much regard to symmetry . 继任的一代接一代都作了可观的添建和装修，一时是一时的风尚，风格别具一格。
The principle of superposition is often used as the main postulate, from which the reciprocal theorems and hence the symmetry of the flexibility matrices are proven . 叠加原理经常用来作为主要的假设，由此互等定理以及柔度矩阵的对称性得到证明。
We see the symmetry we have attributed to allylic particles on the basis of the resonance theory; the two ends of each of these molecules are equivalent . 我们看到了曾经根据共振论而归因于烯丙基型粒子的对称性，所有这些分子中每个分子的两端都是等性的。
