短語(yǔ)詞組短語(yǔ)Ritz reduced method Ritz 降堦Ritz approximate method 裡玆近似方法Ritz computational method 李玆計(jì)算法ritz s method ritz 方法ritz vector method ritz 曏量法ritz energy method 李玆法Ritz variation method 裡玆變分法finite ritz elements method 有限裡玆單元法 返回 ritz method