Family ties, good health, a pleasant natural environment, freedom from conflict: all these count in the equation.
家庭关系，身体健康，自然环境宜人，免于冲突：所有这些都在等式中占有重要地位。
2
An image restored by a recursive solution of traveling wave equation is natural to visual interpretation, without ringing effect and distortion emerging, but accumulated noise appears on it obviously.
The alternative direction illegible method is used in solving two-dimensional convection-diffusion equation for natural convection in cavity, and the convergence is improved.