The aircraft electric power source system is an important part of the on board equipments, which will affect the normal and secure flight of the airplane.

航空电源系统是机上设备的重要组成部分，任意一个环节出现故障，将会影响整个飞机系统的正常安全运行。

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Booking a flight to New York recently, I was advised by the friendly travel agent that I should check in online to secure myself a good seat.

最近预订到纽约的机票时，好心的旅行代理建议我上网登记，给自己弄一个好座位。

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To secure efficient transportation for Tudor City and stimulate our local economy, we should build a new airport, like the one in Yorkville, that is suitable for a regional flight hub.

为保障Tudor City的有效交通并刺激我们的区域经济，我们应该建立一个类似York ville机场的，可以作为区域航线枢纽的新机场。

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Then I click on the Update TSA Secure flight information with no PIN or other security information required.

FORBES: Your Delta Boarding Pass: More Information For Identity Thieves

The plane could not secure a flight path to Amman, so instead, the crew decided to land in Damascus, Air France said.

CNN: Airline asks passengers for gas money

Chiefs beat US Transfoot of Madagascar 4-0 in the first leg in Johannesburg but did not travel for the return match, saying they were unable to secure a flight to the Indian Ocean island.

BBC: Chiefs' appeal quashed