求翻译：6.1从脱硝装置启动开始，经历一段时间的调试和连续运行，然后才开始验收试验。验收试验周期在3个月内完成。验收试验时设备的性能符合要求，规范书中规定的全套脱硝装置的保证项目及技术要求都该达到。是什么意思？

6.1 denitration device start, debug and run continuously through a period of time, and then began to acceptance tests. The acceptance test cycle is completed in three months. The acceptance tests meet the requirements of the performance of the equipment, a full set of specifications book provisions