Signals control each section of the railway track.

各种信号控制着铁路轨道的每个部分。

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Some of the signals control a motor which spins metal-coded platters.

一些信号控制一个用于，金属编码磁盘的旋转。

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Electrical signals control how frequently the heart beats and how the heart muscle contracts to move blood through the body.

电冲动控制心跳的频率，还控制心肌的收缩，使血液能全身流动。

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Some of the signals control a motor which spins metal-coded platters.

一些信号控制一个用于,金属编码磁盘的旋转。

哈佛公开课 - 计算机科学课程节选

Catheters can contain tools to vaporize or "ablate" bits of heart tissue that cause abnormal signals that control the heartbeat.

NPR: Heart Repair Breakthroughs Replace Surgeon's Knife

Applying an electric current and getting a muscle to jump is easy. (Alessandro Volta jolted a frog's legs 218 years ago.) Peckham is harvesting the body's own electrical signals to control muscles that have been cut off from the nervous system, a process called functional electrical stimulation, or FES. Peckham runs a group called the Cleveland FES Center, a collaboration among Case Western Reserve and two Cleveland hospitals.

FORBES: Technology

"Any mechanical motion, such as the movement of arms or the fingers of a robot, could be translated to control signals, " said Zhong Lin Wang, a professor at the Georgia Institute of Technology.

BBC: Sensors