Ainda não temos significados para "last maintenance".
1The last maintenance was on Dec. 25 -it was a normal check.
2The reactor came out of its last maintenance period just two days before the March 11 disaster.
3The jet's last maintenance was on February 4, and it had flown just 1200 hours.
4The plane that crashed had its last maintenance check in late July, Waldmeier said, at which time no defects had been found.
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