The present study aims to identify the technical feasibility, operation time, and complications associated with ESD .
本研究的目的在于检测这一技术的可行性，操作时间，以及ESD 的并发症。
The bleeding during operation has an important effect on operation time and thermal injury and needs to be controlled efficiently in further study.
手术过程中的出血对手术时间和热损伤有重要影响，在未来研究中必须加以有效控制。
It is important to study the most effective energy saving (i. e. combined time energy optimal) operation control mode.
研究它的高效节能运行模式，也就是时间—能量综合最优控制意义重大。
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