However, these synchronization mechanisms work only within a machine, and fail to work across machines.
但是，这些同步机制只能在一台机器上起作用，而不能在在多台机器上同时起作用。
The reason this technique is called the "cheap read-write lock" is that you are using different synchronization mechanisms for reads and writes.
之所以将这种技术称之为 “开销较低的读-写锁” 是因为您使用了不同的同步机制进行读写操作。
Message blocks and message-passing functions let you write parallel applications without requiring synchronization mechanisms such as locks.
使用消息块和消息传递函数，无需同步机制(如锁)即可编写并行应用程序。
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