Thread support 线程支持 ; 绪支援 ; 执行绪支援
Multi-thread support 多线程支持
Thread support library 线程支持库
thread data support 以指明它需要每线程数据支持
per-thread data support 程数据支持
But PVM doesn't support thread safety.
但是PV M不支持安全的线程机制。
Instead, the thread class was modified to support ThreadLocal by adding an instance variable to thread that holds a HashMap mapping thread-local variables to their values for the current thread.
相反地，人们通过给Thread添加一个实例变量(该变量用于保存当前线程的从线程局部变量到它的值的映射的HashMap)来修改thread类以支持ThreadLocal。
As part of implementation, we may break this thread into a few support routines. I explain this in detail below.
作为一种实现，我们可以将这个线程分隔成几个支持例程来实现，稍后我们将详细介绍。
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