Reverse mappings help the system continue to perform and scale well when large applications are placing huge memory demands on the kernel and multiple processes are sharing memory.

当大型应用程序向内核请求大量内存和多个进程共享内存时，反向映射帮助系统继续有效地运行和扩展。

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Clearly, all three solutions present limitations and the conventional buffer memory management approach is not a good mechanism for coding large-scale interacting software.

显而易见地，这三种解决办法全都存在局限性，因此传统缓冲区内存管理方法并不是适合编写大规模交互软件代码的机制。

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The method requires less computation time and smaller memory than the direct computation of volume integral equations, since the large scale matrix inversion may be avoided.

由于不必进行直接的大型矩阵求逆运算，因而与体积分方程的直接解法相比，所需的机时更少，并减少了对内存的要求。

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