qtv
- abbr.合格试验飞行器；合格试验车辆(Qualification Test Vehicle)
qtv-
Conclusion : ( 1 ) In EH patients ABPV were increased , HRV were reduced , the rhythm of blood pressure were disappeared , no significant difference was found between daytime and nighttime QTv .
结论：（1）EH患者血压变异增大，昼夜波动节律消失，心率变异性降低，QT变异度昼夜无显著差异。
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For each short term RR and QT interval series , the symbolic dynamic indexes ( 0V % , 2UV % ) were calculated to get the paired indexes of HRV and QTV .
对于每个短时RR间期和QT间期序列，分别计算其符号动力学指标（0V%，2UV%），得到配对的HRV和QTV指标。