This allows exceptions which arise from communications or runtime difficulties to propagate back to the caller.

这就使由于通信或者运行时的困难引起的异常能够传送回调用者。

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Practitioners can choose when to propagate others' work into their workspaces and when they will harvest their changes back up to the project models.

执行者可以选择什么时候将其他人的工作整合到他们的工作区，以及什么时候他们可以将自己的变更整合到项目模型中。

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You can retrieve table and view data, alter the data, and propagate the updates back to the server.

您可以检索表和视图数据，更改数据，以及将更新传回服务器。

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