| 摘要 |
A marker system includes a marker, and a positioner coupled to the marker, the positioner configured to position the marker from a first predetermined position to a second predetermined position. A method of providing a marker system includes obtaining a first data representative of a first predetermined position, obtaining a second data representative of a second predetermined position, and moving a set of one or more markers from the first predetermined position to the second predetermined position, wherein the set of one or more markers is moved using a positioner. A method of using a marker system includes detecting a marker when the marker is located at a first position, moving the marker from the first position to a second position using a positioner, and detecting the marker when the marker is located at the second position.
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