two dimensions
5.Boundary Element Analysis of Two─dimensions Helmholtz Equation with Nonlinear Boundary Value Condition
7.Some Necessary Conditions for the Periodicity of Arnold Transformation of Digital Image with Two Dimensions
8.By the semiclassical closed-orbit theory of Du and Delos et al. , the research space is extended from two-dimensions to three-dimensions.
9.According to Marx, the ontological dimension is original and these two dimensions are based on praxis.
10.The CCD of Two-dimensions Real Time Observation System for Solar Magnetic Field and Velscity Field

