The basic principle of the system nonlinearity detection based on Hilbert transform and the relative quantitative index of the nonlinearity are introduced.
通过衡量地铁内乘客舒适度指标“相对热指标”这一概念 ，论述了地铁站内空调温度应该是变化的 ，而不应该是定值。
Real estate price index is a relative quantitative indicators that reflects the changes of the price in the real estate market in different periods, It's a so-called "pure price index".
房地产价格指数是反映不同时期房地产市场价格水平的变化趋势和程度的相对数量指标，是所谓的“纯价格指数”。
LSFG values were used to calculate the square blur rate (SBR), which is a quantitative index of relative blood flow velocity.
用LSFG值来计算平方模糊率(SBR)，这是一个相对血流速度的定量指标。
LSFG values were used to calculate the square blur rate (SBR), which is a quantitative index of relative blood flow velocity.
用LSFG值来计算平方模糊率(SBR)，这是一个相对血流速度的定量指标。
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