时间:2019-02-05 作者:英语课 分类:2006年VOA标准英语(八月)


英语课

By Steve Schy
Washington
03 August 2006


The close line calls that have had tennis fans booing and whistling their displeasure will be a thing of the past at this week's Legg Mason Classic tennis tournament.  The event will begin using a new technology that will allow officials to immediately review the action on court and verify line calls.


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Hawk-Eye cameras 
  
Fans, players and officials will now have a second chance to look at questionable 1 calls, thanks to the new Hawk-Eye technology adopted by the U.S. Tennis Association this season.
 
Already in use for years on many televised matches, the USTA will use the system at U.S. Open Series events and other North American tournaments this year. 


It will be the first year for instant replay at the Legg Mason Classic.  Eighth-seeded British tennis player Andy Murray got his first look at Hawk-Eye in his second-round victory over Paraguay's Ramone Delgado on Wednesday.  Murray said that even though the calls did not go his way, he likes the system.


  
  
"I think its very good, unfortunately its the first time I used it today and I was 0-for-3," he said. "That's not good statistics, but its good because you can put the call behind you and I think the fans like it, which is the most important thing.  And, you know, you don't have guys breaking rackets over bad calls now, and I just think its good for tennis."


The impetus 2 to use instant replay technology during matches got a big boost in 2004.  At that year's U.S. Open in New York, American Jennifer Capriati benefited from three bad calls in the quarterfinals that all went against her countrywoman, Serena Williams, who ended up losing the match.  After that, the USTA made it a high priority to develop an accurate and reliable technology to insure correct calls.  Gayle David Bradshaw, Vice 3 President of Rules and Competition for the Association of Tennis Professionals, says the technology is not meant to replace the on-court officials.


"What we are looking for, though, is any opportunity, any way to make sure we get the call correct.  And this is a technology that, right now, is not replacing the line umpires.  We look at it as, it is enhancing the officiating, and that is a positive thing for everybody," he said.


Bradshaw explains how the players use the challenge system.


  
  
"Each player, or team in doubles, is allowed two challenges per set," he said. "If they are correct in their challenge then it does not count against their total of two.  And then once they reach a tiebreak, each player receives an additional challenge."


The Hawk-Eye system uses 10 cameras around the stadium court, five per side.  When a challenge occurs, the images from all 10 cameras are fed into a central computer, which projects a digital recreation on a jumbo screen.  The players and fans see the replay simultaneously 4.


All of the cameras track the ball at all times and are combined to create a single three-dimensional image of the ball's trajectory 5. The margin 6 of error averages plus or minus 3.6 millimeters. 



adj.可疑的,有问题的
  • There are still a few questionable points in the case.这个案件还有几个疑点。
  • Your argument is based on a set of questionable assumptions.你的论证建立在一套有问题的假设上。
n.推动,促进,刺激;推动力
  • This is the primary impetus behind the economic recovery.这是促使经济复苏的主要动力。
  • Her speech gave an impetus to my ideas.她的讲话激发了我的思绪。
n.坏事;恶习;[pl.]台钳,老虎钳;adj.副的
  • He guarded himself against vice.他避免染上坏习惯。
  • They are sunk in the depth of vice.他们堕入了罪恶的深渊。
adv.同时发生地,同时进行地
  • The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。
  • The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。
n.弹道,轨道
  • It is not difficult to sketch the subsequent trajectory.很容易描绘出它们最终的轨迹。
  • The path followed by a projectile is called its trajectory.抛物体所循的路径称为它的轨道。
n.页边空白;差额;余地,余裕;边,边缘
  • We allowed a margin of 20 minutes in catching the train.我们有20分钟的余地赶火车。
  • The village is situated at the margin of a forest.村子位于森林的边缘。
学英语单词
a matter of congratulation
a ramallosa
abstract algebra manifold
accurred
aft antenna
Alois
ARMELLINI
ASLAP
Atlantic Coast Conference
biceps curl
bicks
blomstrand
brachylogy
cabline patchouli
cane-cuttings
cant body
caprizant
casseia
cervical air sac
chartleys
chest pulley weight
ciliary glands
concurrent control count
copy quantity key
countershaft bearing cover
cranial limb of intestinal loop
Dell Inc.
desertin'
dysgranulopoiesis
dysphoric manic episode
echinostelium paucifilum
Ekonal
encephalic poliomyelitis
eoliths
finitists
flynet
gamma-ray shield
general mechanics
grievesome
guffey
Helles, Cape
herbalogy
hot-air damper
ideal productivity index
jurish
kello
leadagetest
lowest common ancestor
maintenance free
Markscheidewesen
martinis
mineral micrology
monochoriate
murreie
myxosomiasis
nephritogenic strains
non-absorbing state
nonsingular network
overbeetling
padded out
petroleur
pintle plate
Plateosaurus
politization
post-puller
preconceived opinions
prejudice against
primitive adjoint
principle of belongingness
psub
qualification of name
Rayleigh criterion
reactive compensation equipment
resistance training
robust performance
rvw
s catarrh Bostock
salted salmon belly
selfproclaimed
side arch
single-end break
sliding shoe
smoker's
standard measuring instrument
Stiper quartzite
submerged intake
swing hammer
synfuel
ta mien
take him
take mercy on
tecophilaea cyanocrocus leyb.
thaumastocheles japonicus
the world is your oyster
threshold immunity
to fan the air
tympanic bone
unurn
velamentous
wave energy transmission
weapon of offense
weighting bottle