Their heart rates slowed down, P R and Q T intervals prolonged and blood pressure reduced after exposure, as compared with those before exposure.

工人接触后心电图指标与接触前自身比较，出现心率减慢、PR间期和QT间期延长及血压下降。

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No significant differences were found in the heart rate, QRS intervals, Q T intervals, sinus bradycardia, sinus tachycardia and left axis deviation between exposed and control groups ( P >0 05).

其余心率、QRS间期、Q-T间期的数值以及窦性心动过缓、窦性心动过速和心电轴左偏等发生率，两组之间均无差异（P＞0．05）。

youdao

And now you will understand how we define the instantaneous velocity at time t which is different from an average velocity between two time intervals.

现在明白了吗，t时刻，的瞬时速度是怎样定义的，与两时刻间的平均速度相比，瞬时速度并不一样。

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"You're left with a situation where over short intervals his model looks good, but over long intervals it doesn't seem to work, " Fama says.

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The band can be set to vibrate at certain intervals if you don't meet a movement quota.

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It wasn't to be as we lost wickets at regular intervals, eventually falling some 27 runs short, but the scenes that followed were simply incredible and had to be seen to be believed.

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