Since most of the foreign trips are long-range flight, "the entire flight crew is divided into two groups and on duty alternatively, " he said.

由于大多数出访都是长途飞行，鲁培新介绍说，“机组成员分为两班，一班值勤，另一班则休息。”

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The radar provides the helicopter with long-range search, imaging and tracking of surface vessels, a periscope detection mode, and the IFF to identify other aircraft in flight.

雷达给直升机提供远程搜索、水面舰艇的成像和跟踪、潜艇检测，并使用敌我识别系统识别飞行中的其他飞机。

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On October 30, 1935, at Wright Air Field in Dayton, Ohio, the U.S. Army Air Corps held a flight competition for airplane manufacturers vying to build its next-generation long-range bomber.

NEWYORKER: The Checklist