If you're unable to provide a suitably coarse-grained Ajax interface for your application, then use call batching wherever possible to combine multiple remote calls into a single HTTP request.
如果不能为应用程序提供适当粗粒度的Ajax接口，那么只要有可能把多个远程调用组合到一个HTTP请求中，就请使用调用批处理。
The guarantee of atomicity is limited to individual operations; when multiple operations must be performed as a unit, a more coarse-grained synchronization mechanism must be used.
原子性的保证仅限于单个操作；如果必须将多个操作作为一个单元执行，则必须使用更粗粒度的同步机制。
The guarantee of atomicity is limited to individual operations; when multiple operations must be performed as a unit, a more coarse-grained synchronization mechanism must be used.
原子性的保证仅限于单个操作；如果必须将多个操作作为一个单元执行，则必须使用更粗粒度的同步机制。
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