The departing time interval control is concise, effective and a basic method of solving the problem of queuing.
发车间隔控制是一种简单有效的解决排队问题的基本方法。
The speed-interval control of high-speed trains adopts the one-step braking curve mode, and multi-step braking curve is as a standby mode.
列车的速度-间隔控制采用一次制动模式曲线方式并以速度分级模式曲线方式作为备用模式。
Methods The transesophageal pacing was performed in 39 children with prolonged pr interval (study group) and 141 children with normal pr interval (control group).
方法对39例PR间期延长(研究组)和141例PR间期正常(对照组)患儿房室传导功能进行了经食道心房调搏研究。
Methods The transesophageal pacing was performed in 39 children with prolonged pr interval (study group) and 141 children with normal pr interval (control group).
方法对39例PR间期延长(研究组)和141例PR间期正常(对照组)患儿房室传导功能进行了经食道心房调搏研究。
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