性能指标是系统的重要质量指标，它的满足程度如何将直接影响系统运行的经济性和有效性。
Performance indices are the important quality indices of a system, they decide the operative economic norms and effectiveness of the system directly.
性能指标是系统的重要质量指标，它的满足程度如何将直接影响系统运行的经济性和有效性。
Performance indices are the important quality indices of a system, they decide the operative economic norms and effectiveness of the system directly.
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