最后将理解结果反馈回切词系统，从而实现切词系统的自反馈和自我完善。
At last, it feeds back the true resulting of segment to the words segmentation system.
一些学者将易位皮瓣的原则和回切的概念应用于扩张皮瓣，取得了良好的效果。
Some colleagues exercised the transposition principles and the back cut flap concepts in expanded flaps and yielded remarkable successes on some special shaped expanders.
清单3中的代码执行初始化，执行一些工作，如果一切顺利，则事务完成，否则会回滚，并最终会清空资源。
The code in Listing 3 performs initialization, performs some work, completes the transaction if everything was successful, rolls back otherwise, and finally cleans up resources.
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