手机APP下载

您现在的位置: 首页 > 在线广播 > VOA慢速英语 > VOA慢速-科技报道 > 正文

VOA慢速英语(翻译+字幕+讲解):可以拯救飞行员的新设备

来源:可可英语 编辑:Sunny   可可英语APP下载 |  可可官方微信:ikekenet
 下载MP3到电脑  批量下载MP3和LRC到手机
加载中..
8rxQAuPd2pQpb

+K*gMGRJkpb%E

While flying high above Earth's surface, jet fighter pilots may suffer loss of eyesight for brief periods. Some pilots may even lose consciousness -- not being able to recognize what is happening around them. These experiences, commonly called blackouts, can lead to tragic results.

U@iwQLB4ncw(sz

Now, an Israeli company says it has developed a device that could save pilots' lives at such times.

VV@XGEG5U7lGuu

Yaron Kranz is senior research and development director at Elbit Systems. He is also a retired fighter pilot. He says two different situations can lead to a pilot's loss of consciousness.

XA~OuSiwDu

"One is ‘G-LOC' or G Loss of Consciousness, and the other one is hypoxia, which is lack of oxygen to the brain."

+oFjumpJO=hXDjSlp.c

G-LOC happens when the airplane is making a sharp turn or speeding up very quickly. During these periods, centrifugal force reduces the normal flow of blood to the pilot's brain. At high speeds, loss of control of the aircraft has proved deadly for many pilots.

jca2qNrJ.-.W*

Hypoxia, or lack of oxygen, can affect anyone at extreme heights. That is why passenger planes are equipped with oxygen masks. Passengers are always told before flying to put on the masks in case of a sudden loss of air pressure.

G7usc2OJ6K

Current devices for preventing such dangerous situations are very large. So Elbit Systems and a small start-up company, called LifeBEAM, developed a system they are calling Canary. It uses small, non-invasive sensing equipment. Yaron Kranz says the sensors are built into the helmet worn by the pilot.

^TWt[oxWr8+@Q

"The pilot doesn't have to do anything in order to activate those sensors and they are small enough and wise enough to give the information to gather the physiological data that is required."

J+E0OfgYLDWmhW2

By physiological data, he means information related to the processes and activities that keep the person alive. When the danger is real, the system sends a message to the visor on the front of the helmet. If it senses that the pilot has lost consciousness, it tells the plane's computer to activate the autopilot. The autopilot will then take control of the plane's movement until the pilot wakes up.

&#D[km-*Tq&%g.WZ_r[&

Elbit Systems is now developing its Canary device for U.S. F-35 fighter jets and other aircraft.

tTymxBQH.r|8F;p

I'm Jonathan Evans.

3wk5OoV]8O|96*dJ-2gA

e.&UVgYXzybAaYfRX8QU6^VM4|e@7sh@+SwDfnK^*ER

重点单词   查看全部解释    
related [ri'leitid]

想一想再看

adj. 相关的,有亲属关系的

 
affect [ə'fekt]

想一想再看

vt. 影响,作用,感动

联想记忆
aircraft ['ɛəkrɑ:ft]

想一想再看

n. 飞机

 
current ['kʌrənt]

想一想再看

n. (水、气、电)流,趋势
adj. 流通的

联想记忆
pressure ['preʃə]

想一想再看

n. 压力,压强,压迫
v. 施压

联想记忆
device [di'vais]

想一想再看

n. 装置,设计,策略,设备

 
plastic ['plæstik, plɑ:stik]

想一想再看

adj. 塑料的,可塑的,造型的,整形的,易受影响的

 
foresight ['fɔ:sait]

想一想再看

n. 远见,深谋远虑

 
extreme [ik'stri:m]

想一想再看

adj. 极度的,极端的
n. 极端,极限

 
director [di'rektə, dai'rektə]

想一想再看

n. 董事,经理,主管,指导者,导演

 

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。