Numerical manifold method can solve both continuous and discontinuous deformation problems in a unified mathematical formulation. The finite cover is the essential technique in this method.
数值流形方法能够统一处理连续与非连续变形问题，有限覆盖技术是该方法的核心。
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With the continuous expansion of CDMA 1x network, the network capacity has reached a new height, which will cover a maximum of the cities and regions even the town-level cities will included.
Then a second circuit layer is formed on the insulation layer and the surface of the basic board, at last, the continuous process such as forming a welding cover.