“变时性”用英语怎么说

结果心脏的负变时性反应取决于刺激猝发所在的心动周期时相.Thenegative chronotropic response depended on timing of the stimulus burst within the car - diac cycle.结论 —— 对运动的血流动力学和变时性反应是可遗传的,并提示有与选择的基因座有可能的遗传连锁.Conclusions - Hemodynamic and chronotropic...