In the current system of land statistics, the indices of land statistics mostly use the data of land investigation and registration and rarely use the data of land quality.
在现行的土地统计制度中，土地统计指标大多使用的是土地调查及土地登记的数据，而较少使用土地质量方面的数据。
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。
This software program consists of 70 function module, which is able to accomplish data processing, quality control, treatment of type samples, maintenance of system and indices summing up.
该系统为一通用软件程序，有70多个功能模块组成，可完成数据处理、质量控制、标样处理、系统维护、参数汇总等功能。
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