老的代使用标记-整理收集器。

The old generation USES a mark-compact collector.

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并行复制收集器和并发标记-清除收集器基本上是默认的复制收集器和标记-整理收集器的并发版本。

The parallel copying collector and concurrent mark-sweep collector are basically concurrent versions of the default copying and mark-compact collectors.

youdao

有几种垃圾收集的基本策略：引用计数、标记-清除、标记-整理 (mark-compact) 和复制。

There are several basic strategies for garbage collection: reference counting, mark-sweep, mark-compact, and copying.

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