请问这句怎么翻?

楼主: chunzheng (听巴哈)   2014-10-08 18:57:20
An Air Force survey in 2011 found that 41% of the Air Force personnel
operating the unmanned aircrafts’ advanced surveillance systems reported “
high operational stress,” along with 46% of those actually piloting the
robotic planes.
请问这句怎么翻呢?
advanced在这边是什么意思?
作者: dharma720 (小金猪)   2014-10-08 20:12:00
advanced是先进的意思
楼主: chunzheng (听巴哈)   2014-10-08 21:12:00
thank you~

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