这是一个颇为耗时的过程，但却是将数据库中的模块配置数据与Process Server基础设施配置保持同步的惟一方法。
This is a time consuming process, but it is the only way to keep the module configuration data in the database in sync with the process Server infrastructure configuration.
模拟法通常用于无法进行实际测量，操作十分困难，耗时长或价格昂贵的测量。
The analogy method is most often used when measurements of the actual object are not possible, extremely difficult, time consuming or costly.
三维格子法所需的计算机内存及计算耗时与同阶精度的规则网格有限差分法相当。
The computational cost and memory requirements for the scheme are nearly the same as those used by the same order finite difference method.
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