By introducing the non-degenerate linear transformation,the calculation procedure of this type of multi-integration is simplified and the calculation formula is obtained.
讨论了被积函数或积分区域可以用二次型来表示的重积分的计算问题,通过引入进非退化线性变换,简化了这类重积分的计算,得出了计算公式。
fixed element (of a collineation)
(直射变换的)不动元素
Another Method to Prove That the Plane Projective Transformation Has at Least One Fixed Point on an Invariant Line
二维射影变换中不变直线上至少有一不变点的另证
Digital watermarking method resisting to affine transforms based on Fourier-Mellion transform
基于Fourier-Mellion变换抗仿射变换水印算法
frequency-DC voltage converter
频率-直流电压变换器
double-quadrant D.C.converting circuit
双象限直流变换电路
single-quadrant DC converting circuit
单象限直流变换电路
four-quadrant D.C.converting circuit
四象限直流变换电路
involutive correlation
对合的对射变换， 对合对射
The sun 's shining straight into my eyes. Is it possible to change table ?
太阳直射我的眼睛。 可以换个桌子吗？
The sun's shining straight into my eyes. Is it possible to change tables?
太阳直射我的眼睛。可以换个桌子吗?
Analysis of Axial Velocity With Perspective Affine Transformation
轴向变形系数的透视仿射变换法分析
Affine Invariant Object Recognition Based on Wavelet Transform;
基于小波变换的仿射不变性目标识别
Research on Inverter Based on Single-Stage Boost DC/DC Convertor;
单级Boost直流变换器型逆变器研究
Research on Single-Stage Inverter Based on Bi-directional DC/DC Isolated Converter;
基于双向直直隔离变换器的单级逆变器研究
Application of Affine Transformation Model in Topographic Map Coordinate Conversion
仿射变换模型在地形图坐标转换中的应用
Guided missile: Projectile provided with means for altering its direction after it leaves its launching device.
导弹:脱离发射装置后能够变换方向的射弹。
Of or relating to the geometry of affine transformations.
仿射几何学的仿射变换式几何学的，与其相关的
Parametric Projective Transformation and Weights of Rational Bézier Curves
有理Bézier曲线的权因子与参数射影变换