But a group of researchers at Stanford University, led by Ilan Kroo, has suggested that airlines could take a more naturalistic approach to cutting jet-fuel use and it would not require them to buy new aircraft.
2010年考研真题(英语二)阅读理解 Section ⅡDr Kroo and his team modeled what would happen if three passenger jets departing from Los Angeles San Francisco and Las Vegas were to assemble over Utah,assume an inverted V-formation, occasionally change places so all could have a turn in the most favour
2010年考研真题(英语二)阅读理解 Section ⅡDr Kroo points out that the aircraft could be separated by several nautical miles, and would not be in the intimate groupings favoured by display teams like the Red Arrows.
2010年考研真题(英语二)阅读理解 Section ⅡDr Kroo says this is one of the areas his team will investigate further.
2010年考研真题(英语二)阅读理解 Section ⅡThe answer, says Dr Kroo, lies with birds.
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