这个阶段有时作为一个随需应变的特性来实现，被嵌入到收集器的结构(例如半空间收集器)中，或以一种增量的形式来实现。

This phase is sometimes implemented as an on-demand feature, embedded into collector's fabric (semispace collectors being an example), or in an incremental fashion.

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它采用了一种延迟引用计数（Deferred Reference Counting，DRC）机制，并结合一个增量的、保守的标记/清除收集器。

This is a Deferred Reference Counting (DRC) mechanism combined with an incremental, conservative mark/sweep collector.

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随着应用程序利用率的增加，垃圾收集器完成其工作的时间会更短，因此需要更大的堆来确保GC周期可以增量式地完成。

As application utilization is increased, the garbage collector receives less time to complete its work, so a larger heap is required to make sure that the GC cycle can be completed incrementally.

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