double normal meaning in Chinese

二当量溶液

This paper uses compare principle to show that there exists at most one of classical solution for ( 1 ) , while the existance of solution is obtained through continuous method . to get the required a priori estimates except the double normal derivatives , we adopt the method in [ 3 ] , and the double normal derivatives on dq are achieved by barrier constructions and applying skill of [ 2 ]
本文用比较原理证明了问题( 1 )至多存在一个古典解，应用连续性方法，得到了问题( 1 )古典解的存在。在得到所需的先验估计时，利用了[ 3 ]中的方法建立了除去边界二阶法向导数外的先验估计，通过构造闸函数，用[ 2 ]中的技巧得到在边界(