1) Pole-changing switchover
变极切换
1.
It is put forward that a new kind of pole-changing winding of Phase-group -interchange with A/A A connection and its way of Pole-changing switchover without interruption of POwer supply.
本文分析了典型的变极绕组及其变极切换方式。
3) switchable polarization
极化切换
4) speed-changing switchover
变速切换
5) shear transformation
剪切变换
1.
In order to renew the image that is attacked by shear transformation,an extended digital image encryption algorithm is proposed based on chaotic sequences.
为了能对经过剪切变换攻击的加密图像进行有效恢复,给出了一种基于混沌序列的数字图像加密算法,该方法在预处理的基础上,基于数字图像灰度矩阵位平面进行置乱加密,在恢复过程中通过象素邻域灰度信息进行恢复,能够有效抵御针对加密图像的剪切变换攻击,同时给出了一种非线性的、应用高维混沌系统产生二值序列的方法。
2.
In order to renew the image that is attacked by shear transformation,an digital image encryption algorithm was proposed based on chaotic sequences.
为了能对经过剪切变换攻击的加密图像进行有效恢复,给出了一种基于混沌序列的数字图像加密算法,该方法在预处理的基础上,基于数字图像灰度矩阵位平面进行置乱加密,在恢复过程中通过像素邻域灰度信息进行恢复,能够有效抵御针对加密图像的剪切变换攻击。
6) contact transformations
切触变换
1.
It is studied that the geometry of the differential equations of the fourth order y (4) =f(x,y,y′,y″,y) under contact transformations by E.
Ｃａｒｔａｎ的等价方法，研究切触变换下四阶微分方程ｙ（４）＝ｆ（ｘ，ｙ，ｙ′，ｙ″，ｙ）的几何。
补充资料：极变
1.谓极尽变化之能事。
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