International Metric Thread System 国际公制标准螺纹 ; 国际公制规范螺纹
InternationalMetric Thread System 国际公制标准螺纹
inch system thread 英制螺纹
system thread 系统线程
thread suction clearing system 吸力清纱装置
PIPE-THREAD SEALANT SYSTEM 管螺纹密封剂
In a userpace thread system, this means that all the threads in a process are blocked as well.
在用户态的线程系统中，这意味着这个进程中的所有线程也都会阻塞。
If the synchronization actually requires contending for the lock, the performance penalty is substantially greater, as there will be several thread switches and system calls required.
如果同步时还发生锁定争用，那么性能上付出的代价会大得多，因为会需要几个线程切换和系统调用。
Contended synchronizations are slow because they involve multiple thread switches and system calls.
争用同步之所以慢，是因为它涉及多个线程切换和系统调用。
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