| 摘要 |
A system for moving a camera along a predefined path in space, the system comprising: a track ( 2 ), the track comprising at least one rail ( 10, 12 ); a dolly ( 4 ) adapted to ride on the track; and a rack and pinion drive mechanism ( 6 ) for driving the dolly along the track. The drive mechanism includes a rack ( 40 ) extending along the track and a driven pinion ( 60 ) mounted on the dolly, and the rack is positioned vertically inline with the at least one rail of the track.
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