Model History and Rollback 模型历史和恢复
The coupling relation between the directions of the overriding plate extension and oceanic plate motion supports the slab rollback model for the back-arc extension.
本次工作所发现的弧后大陆边缘伸展方向和大洋板块运动方向相吻合，支持弧后拉张机制应为板片后退模式。
Notice that the domain-model method does not contain rollback logic.
注意，域模型方法并没有包含回滚逻辑。
The domain class properly has a transaction attribute of MANDATORY because the client is starting the transaction, and the domain model (insertTrade()) is not responsible for rollback.
域类属性有一个事务属性 MANDATORY，因为客户机正在启动事务，而域模型（insertTrade()）不负责执行回滚。
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