求翻译：5.2.7 卖方要为买方的受训人员提供编排严谨、良好的培训手册。卖方保证买方技术人员能在上述工厂的不同岗位得到培训以使他们能够理解并掌握合同设备的技术、操作、检验、修理和维护技能。培训开始前，卖方向买方技术人员详细讲解操作规则和工作注意事项。是什么意思？

5.2.7 the seller to the buyer trainees rigorous choreography, a good training manual. The seller guarantees the buyer's technical personnel of different positions in the factory to get the training to enable them to understand and master the contract of technical equipment, operation, inspection, re