This paper presents the appraisal index of profit quality after analyzing the profit quality attribute and the factors which affect the profit quality.
本文在分析了会计收益的质量属性及影响收益质量的因素以后，提出了收益质量的评价指标。
The transmission quality index of mechanism is also discussed in this paper and a normal formula of transmission quality index for the general basic mechanisms is obtained.
本文还对机构的传动质量指标进行了探讨，得到了能适用于一般基本机构的传动质量指标公式。
By analyzing frequency model and corresponding quality index evaluation model, the paper reveals the causes of accidents, and suggests some approaches to reduce and control transport accident.
通过事故次数模型和质量指标评价模型的相应分析，揭示了发生事故的主要因素，提出了减少和控制事故发生的一些手段。
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