60 元券9783030569242预订ElementsFinite¥5150去看看中国国际图书专营店发布了【预订】Finite Elements II 978303056924225 元券Approximation9783030569242EllipticGalerkin¥5700去看看澜瑞图书专营店发布了【4周达】Finite Elements II: Galerkin Approximation, Elliptic and Mixed Pdes [9783030569242]