例句與造句

1. In chapter two , we consider the finite volume element methods for nonlinear parabolic problems optimal order error estimates in the h1 , l2norms and w1 , almost optimal error estimates in l are demonstrated . moreover superconvergence in the error between the approximate solution and the generalized elliptic projection of the exact solution is also shown
   第二章考慮非線性拋物方程的初值問題的體積有限元法，并證明了h ~ 1 ， l _ 2和w ~ ( 1 , )誤差估計以及l(fā) _最優(yōu)誤差估計，而且還得到了近似解和真解的廣義橢圓投影間的超收斂估計。
2. It's difficult to find elliptic projection in a sentence. 用elliptic projection造句挺難的