If the scientists' early estimates are on target, this quake's impact, however, will take about 130, 500 years to shear off a full minute.

如果科学家们的最初估计是正确的，那么地震的影响，会让130500年流失掉一秒钟。

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An emergency doctor or medical technician with proper equipment must be available at take off and the target during the competition.

比赛期间于起飞场及降落点，必须提供紧急医疗人员或医疗技术员与适当的设备。

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Aircraft Carrier Take-Offs and Landings prove to be extremely challenging because of the need to learn take-off and landing procedures on a moving target with a short runway.

航空母舰的起飞和降落被认为是非常具有挑战性的，因为需要在很短的跑道上学习起降程序。

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Aircraft Carrier Take-Offs and Landings prove to be extremely challenging because of the need to learn take-off and landing procedures on a moving target with a short runway.

航空母舰的起飞和降落被认为是非常具有挑战性的，因为需要在很短的跑道上学习起降程序。

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