1) pre-symmetry
预对称化
2) un-symmetrical change
非对称化
1.
5mm and pre-determined-hole at the center of the specimen,it can be seen that some un-symmetrical changes such as warp in periphery,elliptical distortion,uneven of height and thickness in the lip of the flanged hole occurred during the unloading process in addition to the normal forming failure mode of cracking in the lip of the flanged hole for exceeding the forming limit.
5mm钛板室温圆孔翻边成形试验结果表明,除翻边底孔尺寸小于极限值时在唇口边缘发生破裂的正常失效方式之外,冷翻边卸载后制件还出现凸缘平面翘曲、翻边孔口部椭圆化、唇口边缘高度不一致、壁厚分布不均匀等非对称化现象。
3) symmetrization
[英][,simətrə'zeiʃən] [美][,sɪmətrə'zeʃən]
对称化
1.
Processing of Interferogram Symmetrization in Optical Fiber Fourier Spectrometer;
光纤傅里叶变换光谱仪干涉图的对称化处理
2.
With the probability inequality and the symmetrization skill which have been obtained in empirical processes,it is obtained that almost sure convergence and convergence in probability of the weighted Marcinkiewicz sums of a sequence of random elements that are independent and identically distributed in empirical processes are equivalent under the condition E‖f(X0)‖pG<.
利用经验过程中已有的概率不等式与对称化手法,得到:在条件E‖f(X0)‖Gp<∞(p>1)下,经验过程中的独立同分布随机元序列的配重Marcinkiewicz和几乎处处收敛与依概率收敛是等价的。
5) skew-symmetrizable
斜对称化
6) symmetry reduction
对称约化
1.
Its symmetry reduction and exact solutions are obtained through the generalized conditional symmetry approach.
通过广义条件对称方法得到了其对称约化和精确解。
2.
It s well known that the symmetry reduction method related to group theory, such as Lie point symmetry method, generalized .
众所周知与群论相关的对称约化方法,例如李点对称方法、广义对称方法、条件对称方法、广义条件对称方法等,是研究非线性偏微分方程精确解的有效工具。
补充资料：对称与非对称
反映客观事物在结构、功能、时空上的特殊联系的范畴。对称指事物以一定的中介进行某种变化时出现的不变性，非对称指事物以一定的中介进行某种变化时出现的可变性。在自然界中普遍存在，形式多样。对称有空间对称(包括形象对称和结构对称)、时间对称、概念对称等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条