Russia determines cause of failed satellite launch
英语课
MOSCOW, Aug. 30 (Xinhua) -- Russia's space agency said Tuesday that a Proton-M rocket launch failed earlier this month because of a malfunction 1 in the upper stage.
The conclusion was reached by an independent investigation 2 commission following a series of checks, Roscosmos said in a report that was posted on its website.
"The commission reported that the time span reserved for the gyrostabilized platform's turn was miscalculated and narrowed, which caused the Briz-M upper stage's disorientation and the satellite's journey to a wrong orbit," the agency said.
Other systems in the upper stage performed well, the agency said, adding it has lifted a ban on launches of the Proton-M carrier rockets equipped with the Briz-M upper stage.
Local media reported the Briz-M, manufactured by the Khrunichev State Research and Production Space Center, has had five failures over its 12-year history of operation.
On Aug. 18, a Proton-M carrier rocket failed to deliver a communications satellite into orbit. After the failure, Russia suspended launches of Proton-M rockets pending 3 the outcome of an investigation into the failure.
vi.发生功能故障，发生故障，显示机能失常
- There must have been a computer malfunction.一定是出了电脑故障。
- Results have been delayed owing to a malfunction in the computer.由于电脑发生故障，计算结果推迟了。
n.调查，调查研究
- In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
- He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。