All of the helicopter landing skids must be within the landing circle.

降落时脚架需完全落在圆形的降落区内。

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Try for a smooth constant rate of descent directly to a one (1) meter landing circle.

保持平滑且稳定的下降速度，朝直径1公尺的圆形降落区降落。

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Stop over take-off point, descend vertically and land completely within the landing circle.

在起飞点的上空停止，然后垂直下降，降落时机体必须完全在圆形的降落区内。

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If it succeeds in crossing the Atlantic, it will then try to circle the globe, following the Tropic of Cancer and landing on each continent.

ECONOMIST: Solar-powered manned flight

It was attempting to circle back to the city's regional airport after a failed landing attempt.

CNN: STORY HIGHLIGHTS