事实上，流体的流动——尤其是模仿心脏跳动效果的脉冲——对在实验室培育人造动脉是至关重要的。
In fact, fluid flow - particularly pulses that mimic the effect of a beating heart - is proving crucial for growing replacement arteries in the laboratory.
包围在心脏外面的肌肉墙，也就是心肌层，里面的电脉冲让心脏保持跳动。
Electrical impulses in the myocardium, the heart's muscular wall, keep your heart beating.
从窦房石结出来的电脉冲传播到心脏肌肉触发心脏跳动。
From the sa node, electrical impulses spread through the heart muscle to trigger the heartbeat.
信号彩光脉冲在屏幕上跳动，在死者尸体上洒下眼里炫目的光彩。
The colored lights from its revolving sign pulsed against the screen, splashing garish colors over the victim's body.
计数器是最常用的时序电路之一，他们不只可以用来指望脉冲，还可以分频，定时，发生跳动的脉搏和其他的时钟信号等。
The counter is the most commonly used one of the sequential circuits, they not only can be used to count on pulse, still can separate frequency, timing, produce beats pulse and other clock signal etc.
计数器是最常用的时序电路之一，他们不只可以用来指望脉冲，还可以分频，定时，发生跳动的脉搏和其他的时钟信号等。
The counter is the most commonly used one of the sequential circuits, they not only can be used to count on pulse, still can separate frequency, timing, produce beats pulse and other clock signal etc.
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