This usually indicates some internal problem with the provider and renders authentication impossible, no further request must be send in this authentication transaction.

这通常表示提供者内部出现了某种问题，不可能执行身份验证，在这个身份验证事务中不必发送新请求。

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Using this WebLogic extension makes it impossible for another transaction to read or update data while the first transaction is running.

使用此WebLogic扩展会使当第一个事务正在运行时，另一个事务读取或更新数据成为可能。

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In addition, it is difficult (and sometimes impossible) to propagate a transaction across certain heterogeneous platforms or over HTTP (as in the case of Web services).

此外，也很难(有时几乎不可能)在某些异构平台或HTTP之上(像在使用Web服务情况下)传播事务。

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