Threaded through a person's blood vessels, the sensor can provide blood pressure readings at the valve of the heart itself.

这种传感器可以穿过人体的血管，提供心脏瓣膜处的血压读数。

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Patients, meanwhile, are using new devices to relay their blood pressure, heart rate and other vital signs to their doctors so they can manage chronic conditions at home.

与此同时，患者正在使用新设备，将他们的血压、心率和其他生命体征传递给医生，这样他们就可以在家控制慢性病了。

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Blood pressure and heart rate are typically at their lowest levels during sleep.

在睡眠期间，血压和心率通常处于最低水平。

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Storm surges have the potential to be dangerous because they involve a great upwelling of a stretch of ocean - intense low pressure at the heart of a storm literally tugs the sea surface above its normal level to create a massive bulge.

BBC: Legacy of Britain's great flood

In addition, the modular design could make it more difficult to inspect and maintain key components, many of which would be located within the pressure vessel at the heart of the reactor, he said.

CNN: U.S. backs project for small nuclear reactors

The energetic Talbot was at the heart of their pressure but, finding himself in an inviting shooting position on 37 minutes after Steve Finnan's error, he screwed the ball lamely wide.

BBC: Luton 1-1 Liverpool