中子密度分布

能拍摄血管内部的微型摄像头

能拍摄血管内部的微型摄像头 Ahead of any surgical procedure, doctors try to learn as much as possible about the state of the organs they plan to operate on. A new camera developed in the Netherlands can now make that easier - giving surge

发表于:2019-01-14 / 阅读(83) / 评论(0)

VOA标准英语2015年(八月)

美国国家公共电台 NPR A Lazarus Patient And The Limits Of A Lifesaving Stroke Procedure

RACHEL MARTIN, HOST: About 800,000 people have strokes every year in the U.S. Most are caused when a clot blocks a blood vessel to the brain. We've known about strokes for a long time. But it wasn't until recently that doctors could do anything about

发表于:2019-01-17 / 阅读(53) / 评论(0)

2017年NPR美国国家公共电台5月

SCIENCE REPORT- Cheney/Heart

35 切尼副总统的心脏病治疗手术 DATE=3-14-01 TITLE=SCIENCE REPORT- Cheney/Heart BYLINE=Nancy Steinbach (Start at 1'00

发表于:2019-01-30 / 阅读(75) / 评论(0)

科技之光

HEALTH REPORT - Carotid Stent

HEALTH REPORT - Carotid Stent By Jerilyn Watson Broadcast: Wednesday, May 12, 2004 This is the VOA Special English Health Report. Strokes can take place when fatty material blocks the flow of blood th

发表于:2019-01-30 / 阅读(46) / 评论(0)

健康与经济

VOA慢速英语2010年-Health Report - Treating an Abnormal H

This is the VOA Special English Health Report. A condition called atrial fibrillation produces an abnormal heartbeat. People feel their heart race and they lose their breath. It may last a few seconds, but it can get worse and worse with age, leading

发表于:2019-01-31 / 阅读(94) / 评论(0)

2010年慢速英语(二)月

VOA标准英语2010年-US Doctors Create New Registry for Chi

The IMPACT registry stands for 'Improving Pediatric and Adult Congenital Treatment' and includes information about patients who do not undergo open heart surgery. Often they undergo catheterization, a procedure which uses a catheter, or narrow tube,

发表于:2019-02-07 / 阅读(46) / 评论(0)

VOA标准英语2010年(一月)

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