The coastal boundary condition is commonly set to be the mean sea level in existing models of regional coastal groundwater flow, neglecting the influence of tides.

在现有的沿海区域地下水模拟中往往将海岸边界条件定为平均海平面高度，忽略潮汐的影响。

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Especially in a service oriented context, evaluating existing models for reuse should be the first step.

尤其是在面向服务环境下，出于复用的目的对现有模型进行评估是第一步。

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This use case is an extension of the bottom-up scenario with the added complexity of synchronizing existing class models in RSA with the new or modified information.

这个用例非常类似于自下而上场景，只是另外还需在RS a中用新的或被修改的信息同步已有的类模型。

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In India, the automaker is in the process of developing cars to bridge the gap between its existing models in the country.

FORBES: Toyota Targets Developing Countries En Route To $90

This willingness to risk failure in pursuit of a breakthrough can feel especially scary in the social sector, where fundraising anxiety discourages honest conversations about how to move beyond existing models in search of better ones.

WSJ: The Experts: What's the Best Way to Test a New Business Idea?

Again, in this challenge to the existing models the Goce gradients appear most pronounced in high latitude and continental regions.

BBC: Europe's Goce satellite probes Earth's gravity