invariant

英 [ɪnˈveəriənt]

美 [ɪnˈveriənt]

adj.  不变的; 恒定的

复数：invariants　

BNC.26080 / COCA.27422

牛津词典

adj.

• 不变的；恒定的
  always the same; never changing

英英释义

noun

• a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it

adj

• unvarying in nature
  1. maintained a constant temperature
  2. principles of unvarying validity
  Synonym:changelessconstantunvarying
• unaffected by a designated operation or transformation

双语例句

• Scale Invariant Feature Transform ( SIFT); differential multiplication; dynamic background; moving object detection;
  尺度不变特征变换算法；差分相乘；动态背景；运动目标检测；
• First we extract color moments, texture features and affine invariant moments from the2D view images of3D objects.
  首先从三维物体的二维视图中提取颜色矩、纹理特征和仿射不变矩。
• The charaters after affine transformation can also be recognized by a dyadic wavelet affine invariant function.
  仿射变换后的汉字或其它图像可用多尺度小波的仿射不变函数进行对比识别。
• The speed of light is an invariant constant.
  光速是一个不变常数。
• Abstract An improved image recognition and registration algorithm based on convex hull and affine invariant was presented.
  提出了一种新的基于凸壳和仿射不变量的图像识别和配准的方法。
• By making use of the basic invariant, the squeezed states and squeezed number states for this time-dependent system are also constructed.
  文中研究了广义含时谐振子系统的不变量和不变量的一般形式，并利用基本不变量构造了此含时系统的压缩态和压缩数态。
• Application of Invariant Subspace Method to Nonlinear Partial Differential Equations
  不变子空间方法在非线性偏微分方程中的应用
• An improved de-noising arithmetic is put forward by combining the new threshold function and translation invariant wavelet de-noising method.
  将这种新的阈值函数与平移不变小波去噪法结合起来，提出了一种基于平移不变小波去噪的改进算法。
• The invariant set and attractor for a class of non-autonomous delay differential system are investigated in this paper.
  研究了一类非自治时滞微分系统的解的不变集与吸引集。
• It contains an invariant& that the lower bound is always less than or equal to the upper bound.
  它包含了一个不变式&下界总是小于或等于上界。