基本解释[數學]映射範數英汉例句雙語例句By introducing weighted norm and using the Banach contraction mapping principle we obtain the existence of throughout positive solutions for the above equations.通過引進加權範數及利用巴拿赫壓縮映射原理，得到上麪這兩種方程始終正解的存在性。mapping norm更多例句词组短语短語norm of mapping 映射的範數norm -mapping 模映射norm preserving mapping 保範映射mapping norm更多词组专业释义數學映射範數