以下为句子列表：
英文: Examples of the absoluteness include the principle of invariance for velocity of light, the principle of special relativity, the principle of general relativity, eigenlength, eigentime, Minkowski four dimensional space-time.
中文: 在教学中常常强调其中的”相对”，而忽视了相对论中还有“绝对”的一面，如光速不变原理、狭义相对性原理、广义相对性原理、本征长度、本征时间、闵可夫斯基四维时空等都具有绝对性。
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英文: In the image processing experiments, the straight lines are extracted with the image preprocessing algorithm proposed in this paper, and the stability and viewpoint-invariance of the invariants calculated by those lines are assessed.
中文: 图像处理实验给出了用文中提出的图像预处理算法获得的直线边缘效果，并通过使用所得直线计算不变量的值衡量了所得不变量的稳定性和视角不变性。
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英文: The central complex moment is defined, and complex moment based moment invariants are proposed. The translation, rotation and scaling invariance of moment invariants is discussed using the central complex moments.
中文: 摘要定义了中心复数矩，提出了基于中心复数矩的不变矩表示，进而讨论了离散情况下不变矩的平移、旋转及尺度不变性，给出了理论分析结果，并用实验进行了验证。
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英文: Why does combining the principle of relativity with the invariance of the speed of light lead one to conclude that no medium is required for light to propagate?
中文: 为什么由相对论原理以及光速的不变性可以推导出光不需要介质即可传播？
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英文: Invariance of the Spinor Field Equation in Curved Spacetime under the Group SO(,)
中文: 弯曲时空的旋量场方程在SO(,)作用下的不变性
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