军用直升机使用西方发动机并不是新闻。

This use of Western engines in military helicopters is not new.

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米-6是一种重型军用运输直升机。

The Mi-6 is a heavy military transport helicopter.

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米6为重型军用运输直升机。

The Mil Mi-6 is a heavy military transport helicopter.

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米6为重型军用运输直升机。

The Mil Mi-6 is a heavy military transport helicopter.

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