效率差的 meaning in English

inefficient

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