The plane circled, awaiting permission to land.

飞机盘旋着，等待着陆指令。

《柯林斯英汉双解大词典》

Getting permission to land can be another hassle altogether.

而申请着陆许可证可以说是另一件麻烦事。

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Bigapple. This is helicopter. Request permission to land on deck.

直升飞机请求允许在甲板上降落。

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The crews would have to radio those ports from out at sea and request permission to land.

VOA: special.2009.02.10

But the governor of the Riau Islands refused the boat permission to land.

VOA: standard.2009.10.27

To land,foreign fishing ships will have to request permission from ports that are able to inspect them.

VOA: special.2009.12.08

Conspiracy theories (bunk, probably) abound that the plane was running out of fuel and was denied permission to land in nearby Bagram airport, a U.S. base.

FORBES: Magazine Article

The minister told CNN that Aristide had been granted permission to land in the country after Aristide himself -- as well as the U.S. and French governments -- requested it.

CNN: Aristide says U.S. deposed him in 'coup d'etat'

It is contended that an aircraft carrying General Pervez Musharraf home from Sri Lanka was refused permission to land by Mr Sharif's government, endangering the lives of the 200 people aboard, including the general, now Pakistan's military ruler.

ECONOMIST: Justice, Pakistani-style | The