Types of heart rate-recovery loop were significantly correlated ( P < 0. 001) with number of diseased coronary arteries.

心率恢复环形态与冠状动脉病变支数相关性良好（P<0.001）。

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Objective: To evaluate the clinical value of heart rate recovery loop (HRRL) during treadmill exercise test in the detection of coronary artery disease (CAD).

目的：评价平板运动试验心率恢复环(HRRL)在冠心病(CAD)诊断中的价值。

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The implementation method of the receiver carrier recovery loop of microsatellite affects the volume, weight and function reconfigurability of the transponder.

针对微小卫星测控应答机的体积、重量及其功能灵活性，研究了接收机载波恢复环的实现方法。

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There is good reason to think that treating Brazil's crisis as merely a temporary setback on the road to recovery is to ignore a potentially more ominous Big Picture - that the event represents another loop in a deflationary spiral that could dampen the world's economic prospects for years to come.

CNN: BRAZIL'S BOMB