... 在每个分离的段上存储其事务日志的数据库均自动设置有最后机会阈值（Last Chance&nbs 1）执行的原子性（Atomic）； 2）保持数据的一致性（Consistency）； ...
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原子性可能是一个成功事务执行的最基本属性。
Atomicity is perhaps the most basic property of successful transaction executions.
在分布式系统中，原子性还表明一个事务应该在参与事务的所有节点中全部执行成功或全部失败。
In distributed systems, atomicity means also that a transaction should succeed either in all or in none of the participating nodes.
WS-AT 可以确保以事务方式执行对这三种 Web 服务的调用，并向应用程序提供原子性、一致性、隔离性和持久性 (ACID) 语义。
WS-AT ensures that invocation of these three Web services is performed in a transactional fashion, providing Atomicity, Consistency, Isolation and Durability (ACID) semantics to the application.
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