相似对称的

This paper illustrates the process where projective transformation and affine transformation are employed to solve advanced geometrical problems.

引言变换是我们在几何解题中常用的方法之一。初等几何中的变换方法有对称变换、平移变换、旋转变换和相似变换，高等几何中的变换有射影变换、仿射变换等。

Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic field is similar to that of a bar magnet.

因为地核流在旋转轴周围存在着一些对称，所以相关的磁场与棒磁铁的磁场相似。

In this paper, the asymmetry in similar Chinese character recognition is introduced.

在实际应用中，我们发现相似汉字之间的误识存在不对称性，并对这种不对称现象的成因进行了细致的探讨和分析。

Finally, based on these characteristics , the eigenvalues and eigenvalues polynomials and its diagonal matrix were given.

最后，在分块反对称反循环矩阵性质的基础上，给出了其特征值和特征多项式以及相似对角阵。

They may do so symmetrically, thereby producing identical daughter cells, each of which resembles the mother cell.

干细胞可进行对称分裂，从而产生完全相同的子细胞，每个子细胞与母细胞相似。

More over, a group interpretationis provided to the similarity reductions in terms of nonclassical symmetry.

第六章利用寻求偏微分方程的相似约化的直接方法讨论了广义Burgers方程的相似约化以及相应的精确特解，并对所得到的约化提供了非经典对称群解释。

The characteristic vector of the real symmetric matrix should be found out, which is orthogonalized and normalized to a standard orthogonal base and is used as row vector to construct the transformation matrix P, so the P~(-1)AP can be made into diagonal matrix.

实对称矩阵A经相似变换P-1AP可化为对角矩阵，在x =Py 下，不一定能化A的二次型为标准型；应寻求对称矩阵A的特征向量，将其正交化并单位化作为标准正交基，作为列向量构造变换矩阵P，可使P-1AP=Λ为对角阵，在x =Py 下，要将二次型化为标准型，且二次项系数即为对角阵Λ主对角线上元素。

Similar to the other Boolean set operations, symmetric difference is the XOR of sets.

和其他的布尔集合操作相似，对称差分是集合的XOR(或 exclusive disjunction)。

Stem and pedicels glabrous; leaves similar to or slightly different from each other; flowers actinomorphic; nectaries similar.

茎和花梗无毛；叶类似于不同于彼此的或稍；花辐射对称；蜜腺相似。

Line group, Symmetry, Polymer, Crystal structure, Space group, Order-disorder transitions

与空间群的定义相似，、可以把一维结构的空间对称操作群定义为直线群。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失