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jyrkästi ylös ja alas kulkeva lentorata

(flight path consisting of a series of steep ascents and descents)

mäkinen rata

(railway track on which there are steep ascents and descents)

serpentiinirata

(railway track on a steep slope in a zigzag formation)

serpentiinitie

(path or road having a series of steep ascents and descents)

vuoristorata

(railway track on which there are steep ascents and descents)