Dataset {
    Int32 n_node[n_node = 11090];
    Float32 x[n_node = 11090][n_dim = 2];
    Int32 tri[n_elem = 20998][n_elemdim = 3];
    Int32 duo[n_duo = 1180][n_dim = 2];
    Float32 u[n_node = 11090][n_dim = 2];
    Float32 visc[n_node = 11090];
    Float32 C_ozone[n_node = 11090][n_ks = 4];
    Float32 N[n_node = 11090][n_ks = 4];
    Float32 k_s[n_ks = 4];
    Float32 k_mu[n_kmu = 1];
} data2/CF_Drinking_water/CH4_ozone_system/CFD_ozone_add_diffusion.nc;