效率 productiveness; efficiency; productivity; workpiece ratio 效率低 inefficient; 效率高 efficient; 提高效率 promote efficiency; 效率首屈一指 second to none in efficiency; 投资效率 the efficiency of investment; 效率就是生命。 efficiency is life
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In this thesis , genetic algorithm ( ga ) is used to solve aeroengine nonlinear model problems at first time , fast ga and ga application meathods are studied , the main work and the conclusion of the thesis are summarized as follows : 1 本文首次将遗传算法应用于发动机非线性数学模型,首先针对遗传算法计算效率差的不足,进行快速遗传算法研究;然后深入分析了遗传算法在发动机数学模型应用中的实现技术。论文完成的主要工作与结论如下: 1