结论阻力指数鉴别单侧梗阻性和非梗阻性上尿路积水的能力可能有限，阻力指数率可能有助于单侧上尿路积水的鉴别。
Conclusion ri may play no role in the differential diagnosis for unilateral upper urinary hydrocele. Resistive index ratio may contribute to it.
他还指出，美联储的这一主张是根据“核心通胀率”指数得出的，该指数排除了食品和能源成本。
He revealed that the Fed bases this contention on an index of "core inflation," which excludes food and energy costs.
杠杆ETF利用债务来放大他们购买的指数的回报率，对于投资者来说这是非常危险的。
That spells danger for investors in leveraged ETFs, which use debt to magnify the returns of the index they follow.
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