In order to improve the maintenance, reduce life cycle cost of the radar equipment, it is necessary to develop maintenance evaluation during development and use process of radar equipment.
为了提高装备的维修性水平，减少雷达装备的寿命周期费用，就必须在雷达装备研制和使用过程中开展维修性评定工作。
The evaluation and forecast of the life cycle cost for an aircraft flight system is the important link in the system optimization and R&D of aviation engineering.
飞机飞控系统的寿命周期费用估算与预测是航空工程系统优化和研发的重要环节。
Basic techniques of engineering economics, including net present value analysis, life-cycle costing, benefit-cost analysis, and other approaches to project evaluation are among the topics covered.
工程经济学的基本方法，包括净现值分析法、寿命周期成本法、收益-成本分析法和其它项目评估方法。
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