The young generation, or nursery, USES a semi-space copying collector, and the old, or tenured, generation USES a concurrent mark sweep collector.
年轻(也称为婴儿(nursery))代使用一个半空间复制收集器，而老年(也称为长存的(tenured))代使用并发的标志扫描收集器。
GC occurs in three phases: mark, sweep, and optionally compact.
GC有三个阶段：标记、清除和可选地整理。
This is a Deferred Reference Counting (DRC) mechanism combined with an incremental, conservative mark/sweep collector.
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。
The copying algorithm has excellent performance characteristics, but it has the drawback of requiring twice as much memory as a mark-sweep collector.
复制算法的性能很优异，但是它有一个缺点是需要两倍于标记-清除收集器所需要的内存。
The process has three major phases: mark, sweep, and compact.
这个过程有三个主要阶段：mark、sweep和compact。
The parallel copying collector and concurrent mark-sweep collector are basically concurrent versions of the default copying and mark-compact collectors.
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。
There are several basic strategies for garbage collection: reference counting, mark-sweep, mark-compact, and copying.
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。
The same mark-sweep-compact collector is used, but much of the mark and sweep phases can be done as the application runs.
这种策略也使用 “标记-清扫-压缩 (mark-sweep-compact)” 收集器，但大部分标记和清扫工作可以在应用程序运行时执行。
Two of the new collectors are designed to reduce collection pause time — the parallel copying collector and the concurrent mark-sweep collector.
新收集器中的两个——并行复制收集器和并发标记-清除收集器——设计为减少收集暂停时间。
The problem with a mark-sweep algorithm is that it can lead to fragmentation (Figure 2).
“标记-清扫”算法的问题是可能会导致碎片（fragmentation），如图 2 所示。
The generational collector employed by JDK 1.2 and later offers far better allocation and collection performance than the mark-sweep-compact collector used by earlier JDKs.
JD K 1.2及以后版本所使用的分代垃圾收集器提供了比早期JDK所使用的标记-清除-整理收集器好得多的分配和收集性能。
Even for most enterprise applications the use of the concurrent-mark-sweep collector (also known as the low-pause collector) will reduce pauses to levels that are acceptable for most applications.
甚至对大部分企业级应用程序来说，并行标记扫描(concurrent - mark - sweep)回收器(也叫低暂停回收器，low - pausecollector)的应用也已经把暂停降低到了一个大多数应用可以接受的级别上。
Even for most enterprise applications the use of the concurrent-mark-sweep collector (also known as the low-pause collector) will reduce pauses to levels that are acceptable for most applications.
甚至对大部分企业级应用程序来说，并行标记扫描(concurrent - mark - sweep)回收器(也叫低暂停回收器，low - pausecollector)的应用也已经把暂停降低到了一个大多数应用可以接受的级别上。
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