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- positive chronotropic effect 正性变时作用
- Physostigmine potentiated both PDS and the negative chronotropic effect, however, atropine could not abolish PDS. 毒扁豆碱可加强驱动后阻抑及驱动后的负性变速效应，阿托品不能完全阻断驱动后阻抑。
- positive sinoatrial chronotropic effect 正性窦房性心率作用
- Within certain limits, the degree of postoverdrive suppression (PDS) and negative chronotropic effect was proportional to the frequency and duration of the driving stimulus. 结果表明，在一定范围内右房超速驱动后阻抑及驱动后的负性变速效应，随驱动频率和驱动时程增加而加强。
- These findings suggest that ISP may decrease the content of SS in rat cardiac ganglia, and its positive inotropic and chronotropic effects on the heart can be achieved by decreasing the content of SS. 结果说明异丙肾上腺素可降低心内神经节中SS含量，提示，异丙肾上腺素的正性变时和变力作用可能通过降低SS的含量来实现。
- CONCLUSION CA produces hypotensive effect in anesthetized rats, which is related to its negative inotropic and chronotropic effects on the heart and the relaxating effect in blood vessels. 结论桂皮醛对麻醉大鼠具有显著的降血压作用，此作用可能与桂皮醛对心肌的负性变时、变力效应和舒张血管作用有关。
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- Punishment had very little effect on him. 惩罚对他没有什么效果。
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- It's certain that every effect must have a cause. 无疑，每个结果必定有其原因。
- That measure will be carried into effect very soon. 这项措施将在最近付诸实施。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- My plan has not been carried out with effect. 我的计划未被有效地执行。
- The room shows off her paintings to good effect. 这个房间把她绘画的优点充分显示出来。
- This charge is a positive charge. 这个电荷是正电荷。
- Keywords Coronary artery disease;Coronary Angiography;Exercise tests;Chronotropic effect; 冠心病;冠状动脉造影;运动试验;变时功能;
- Her words had a soothing effect. 她的话起了安慰的作用。
- It's the music to heighten the dramatic effect. 那是用于提高戏剧效果的配乐。
- She shows a very positive attitude to her work. 她工作态度非常积极。
- I felt comfortable on narcotic effect. 在麻醉剂的作用下我感到舒服些。
