单词：asynchronous pacemaker
单词：asynchronous pacemaker 相关文章
In Haiti, a powerful aftershock sent Haitians into the streets, cracking roads and adding to the nation's trauma. The magnitude-5.9 jolt matched the strongest of the aftershocks that came after the huge quake that devastated the capital Port-au-Princ
美联社新闻一分钟2010(一月)
SCIENCE IN THE NEWS - Major Progress in Health Through Technology From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move
2013年VOA慢速英语(一)月
Alzheimer's disease or AD is an illness that seriously affects senior citizens. It causes memory loss, and patients may even gradually lose some of their basic physical abilities. But now researchers in the U.S. are using technology to reduce memory
英闻天下
Pacemakers are expensive. Though some pacemaker manufacturers have dropped the price down to $800 in poorer countries, thats still out of reach for many. One to two million people die each year because they dont have access to this life-saving techno
Scientific American(十)月
1. NASA will have to try again tomorrow. Bad weather forced Mission Control to call off today's scheduled launch of Discovery at the last minute. NASA will try again tomorrow but bad weather is still
美联社新闻一分钟2006
1. The start of summer is heating up the eastern seaboard. The National Weather Service is forecasting temperatures into the high 90s from Boston down to Washington. Dozens of cities are setting up public cooling centers for those without air conditi
美联社新闻一分钟2012(七月)
This is the VOA Special English Health Report. A pacemaker is a small device that doctors place in people with an abnormal heartbeat. If a heart beats too slowly, the pacemaker will use electrical signals to help set a normal rate. Some devices inclu
2010年VOA慢速英语(六)月
Major Progress in Health Through Technology From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move a robotic arm. We tel
2013年VOA慢速英语(五)月
From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Bob Doughty. And Im Faith Lapidus. Today, we tell about a woman who can use signals from her brain to move a robotic arm. We tell about efforts to develop an experimental g
英语语言学习
APIPA, Automatic Private IP Addressing / 自动专用 IP 寻址 AppleShare AppleTalk AppleTalk Filing Protocol / AppleTalk 编档协议 AppleTalk network integration (formerly Services for Macintosh) /
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Alzheimer's disease or AD is an illness that seriously affects senior citizens. It causes memory loss, and patients may even gradually lose some of their basic physical abilities. But now researchers in the U.S. are using technology to reduce memory
英闻天下