对这些船只的主要任务是两栖登陆作战。

Primary mission for these ships are amphibious landing operations.

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登陆地域选择是登陆作战中的关键工作之一。

The choice of landing area is one of the key works in landing action.

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登陆地域选择是登陆作战中的关键工作之一。

The choice of landing area is one of the key works in landing action.

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