Some situations also call for caching data in memory to minimize the number of data base calls for data that does not change.

同样一些情况要求在内存中缓存数据，以此来减少并不改变的数据被数据库调用的次数。

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After you have gathered form data and the base URL, you submit the AJAX call by using the Dojo library xhrPost method.

收集表单数据和基础url之后，使用dojo库xhrpost方法提交AJAX调用。

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The glider returns periodically to the surface to radio its data back to base, or if that's too far away, it can call a satellite phone and send its information anywhere in the world.

滑翔器定期会返回水面，把数据用无线电波传送到基地，如果它在太远的地方，可以拨打卫星电话，然后把信息送到世界的任何地方。

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