Once all the updates are performed you can invoke the commit method to commit the transaction, or the rollback method to roll back the transaction. Listing 5 illustrates this technique.

执行了所有更新之后，您可以调用commit方法来提交事务，或者调用rollback方法来回滚事务。

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The waterproof structure or waterproof construction method has the back of waterproof roll heated to smelt and adhered onto the base surface.

一种防水结构或防水施工方法，通过使防水卷材等的背面过热熔融并接合 粘附在基底面上而得到的防水结构具备：防水卷材；

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The temperature field of a large forged back-up roll during differential heating and cooling was simulated with a computer based finite element method.

利用热处理温度场的计算机模拟软件计算出大型锻钢支承辊锻件差温加热及冷却时的温度场。

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