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。
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.
因此，必须科学地估算炮兵武器装备的寿命周期费用，以提高武器装备采办效率和经费使用效益。
So we must estimate the LCC (Life Cycle cost) of artillery equipments with scientific methods, so that we can improve the efficiency of the acquisition and using cost.
在分析装备的寿命周期费用的基础上，根据系统特点，运用灰色系统理论的GM(1,1)模型。
Based on analyzing the economical life cycle expense of equipment, according to the system characteristics, the GM (1, 1) model of grey system theory is used.
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