SSS 2009-04-15
时间：2019-01-08 作者：英语课 分类：Scientific American(四)月
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.
It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activity—filing taxes. Now there's good news if you want to know how bad your heart is suffering from the stress: M.I.T. researchers have built an easily wearable blood pressure sensor 1. It works around the clock to provide an accurate 24-hour read of blood pressure.
Some people have so-called white coat hypertension—their blood pressure spikes 2 in the doctor's office. Also, there are natural changes in blood pressure over a day's cycle, and a one-time reading won't catch that.
The device doesn't use a cuff 3, like the kind that cuts off the circulation in your arm at the doctor’s office. It sits over the wrist and index finger and measures the pulse at two locations, checking the velocity 4 of the blood flow. The information gathered could assist doctors in figuring out the best medication, or even in telling a patient when during the day to take that medicine—or a deep breath. The device should be available to the public in a few years. In the meantime, many happy returns.
Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.
- The temperature sensor is enclosed in a protective well.温度传感器密封在保护套管中。
- He plugged the sensor into a outlet.他把传感器插进电源插座。
- a row of iron spikes on a wall 墙头的一排尖铁
- There is a row of spikes on top of the prison wall to prevent the prisoners escaping. 监狱墙头装有一排尖钉，以防犯人逃跑。 来自《简明英汉词典》
- She hoped they wouldn't cuff her hands behind her back.她希望他们不要把她反铐起来。
- Would you please draw together the snag in my cuff?请你把我袖口上的裂口缝上好吗？