它为大型项目问题，例如，体系结构、需求开发、多级发布计划，以及团队组织，提供有实际意义的指导。
It offers a practical guide to large project issues such as architecture, requirements development, multi-level release planning, and team organization.
建立了管道腐蚀缺陷的多级评价体系，按照从简单到复杂，从保守到精确的顺序对缺陷进行分级评价。
The multilevel assessment system of corrosion defects is erected, which carries grade assessment according to the criterion from simpleness to complexity and from conservation to accusation.
最后指出了航空公司制定多级票价体系的关键问题和应对策略。
Finally, the key problems on establishing a system of multistage ticket price and the strategies of airlines are pointed out.
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