In this paper, the approximation of the second order parabolic equation is studied with the anisotropic biquadratic element. 摘要本文研究具有各向异性特征的双二次元对二阶抛物方程的逼近。
It is the most powerful element in the Universe yet we cannot know it from our human perspective because it cannot be experienced in the third dimension. 空性是宇宙中最有力量的元素，然而人类在三次元的体验中，无法认知空性的存在。
