Quantitative standards of ultrasonography diagnosis were established.
本研究确立了超声诊断之量化标准。
Derail coefficient and ride quality are two quantitative standards for evaluating safety and comfort of train.
对于安全性和舒适性的评价，两个定量的标准是脱轨系数和平稳性指标。
Methods According to related national standards, the analogy and quantitative analysis method were adopted for qualitative and quantitative evaluation.
依据国家相关标准，采用类比法和定量分析法相结合的原则进行定性、定量评价。
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