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2006年VOA标准英语-Space Shuttle Prepares for International Space_在线英语听力室
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2006年VOA标准英语-Space Shuttle Prepares for International Space

时间:2007-04-09 07:57:54

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By Michael Bowman
Washington
05 July 2006

Preparations are underway on the Space Shuttle Discovery for Thursday's planned docking with the International Space Station. Discovery's crew spent much of the day performing a thorough examination of the orbiter's exterior1, one day after a successful launch from Cape2 Canaveral.

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Camera mounted on space shuttle Discovery's robot arm shows docking port in cargo3 bay  
  
NASA officials say Discovery is on schedule for Thursday's rendezvous4 with the International Space Station.

"The vehicle is in great shape," said Shuttle Flight Director Rick LeBrode. "The crew is in great shape, and we are ready for 'dock ops' [docking operations.]"

Prior to docking, crewmembers will prepare space suits to be used for at least two space walks, once Discovery arrives at the International Space Station.

Earlier, the crew deployed5 an array of cameras attached to a boom operated by the shuttle's 15-meter robotic arm. During a seven-hour period, the cameras took extensive images of the shuttle's wings and nose cap.

The rigorous inspection6 is a safety measure implemented7 in the aftermath of the 2003 Space Shuttle Columbia disaster. Columbia broke up upon re-entry to Earth's atmosphere. A section of foam8 that peeled away during lift-off was believed to have damaged shielding on the orbiter's wing, leading to the deadly mishap9.

Hoping to avoid a possible recurrence10 with Discovery, NASA will closely examine the images, which are capable of revealing a crack or other damage as small as three millimeters.

Nothing of major concern has been discovered. Speaking with reporters, Flight Director Tony Ceccacci said the images do show a white splotchy area on Discovery's right wing. But Ceccacci noted11 that he and other inspectors12 spotted13 the discoloration nearly three weeks earlier - and concluded it was most likely the result of bird droppings.

Ceccacci was asked if such a substance could affect the shuttle.

"No, it will burn off during [re]entry," he said.

Discovery will deliver several tons of supplies and equipment to the International Space Station, as well as a crewmember. Mission Specialist Thomas Reiter of Germany will remain on the space station for six-months.

This is just the second space shuttle mission since the Columbia disaster. The shuttle fleet is scheduled to be retired14 in 2010.


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