存储器诊断单元使第二处理器执行存储器诊断程序来对主存储器进行诊断，并识别主存储器中的缺陷区。

The memory-diagnostic unit causes the second processor to execute a memory-diagnostic program to diagnose the main memory, and identifies a defective area in the main memory.

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存储器诊断单元使第二处理器执行存储器诊断程序来对主存储器进行诊断，并识别主存储器中的缺陷区。

The memory-diagnostic unit causes the second processor to execute a memory-diagnostic program to diagnose the main memory, and identifies a defective area in the main memory.

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