| 单词 | aircraft operations | 
| 释义 | aircraft operations With that information, civilian and military aircraft operations can mitigate future bird strikes with minor adjustments to avoid the birds.  Smithsonian Mag  As a result, despite a 21 per cent fall in underlying sales in its civil aircraft operations, the fall in 2009's pre-tax profits was limited to 4 per cent.  Times, Sunday Times  Soon the ice began to melt and crack, making the airfield unsuitable for aircraft operations.  Retrieved from Wikipedia CC BY-SA 3.0   The airport handles approximately 250 aircraft operations per day.  Retrieved from Wikipedia CC BY-SA 3.0   Currently, there are more than 5.1 million annual passenger movements in almost 60,000 commercial aircraft operations.  Retrieved from Wikipedia CC BY-SA 3.0    | 
	
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