飞机通过无线电地面控制塔保持联系。

The plane made contact with the ground control centre by wireless.

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得知这一消息之后，控制塔的一位官员怎么说？

What did the officer in the control tower say after he heard the news?

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一次，飞行员不得不给控制塔发出电波。

Once a pilot had to radio to the control tower.

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EDDR786加入标准复飞程序，联系成都控制塔。

EDDR786 join(s) Standard Miss(ed) Approach Procedure, contact(ing) Chengdu control.

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如何控制塔釜温度？温度为多少？

How is the bottoms sump temperature control, and at what temperature?

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如何控制塔釜温度？温度为多少？

How is the bottoms sump temperature control, and at what temperature?

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