| 摘要 |
Provided is a computer mouse including a grip portion having a flat bottom and a longitudinal central grip axis; a grip central point located at the center of the longitudinal central grip axis; the grip portion capable of standing on a flat surface via its flat bottom in order to allow the grip portion to move on the flat surface; a vertical axis perpendicular to the flat bottom and including the grip central point; a sensor portion which includes a sensor having a sensor central point located at the center of the sensor; the sensor being located distant in a forward direction from the grip portion; a vertical plane containing the vertical axis and the sensor central point; wherein the longitudinal central axis is angled from the vertical axis and tilted to the left or right with reference to the vertical plane; a bottom grip point defined by the intersection between the vertical axis and the flat bottom; and wherein the bottom grip point is located substantially at the center of the flat bottom.
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