调速器无负荷速度调节 NSET
对长春市中学优秀男子中长跑运动员进行递增负荷测试，得到其最大摄氧量和无氧阈及其对应的速度、心率。
By Changchun middle school elite middle distance runner increment load test, we get the maximum oxygen uptake and anaerobic threshold and the corresponding speed, heart rate.
方法联合应用胎心无负荷试验（NST）及多普勒脐动脉血流速度测定对2 0 0例妊娠晚期孕妇进行观察。
Methods fetal non-stress test combined with fetal umbilical artery doppler velocimetry were used in 200 late pregnant women.
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