| 摘要 |
A probe comprises a first and a second arm portions extending in the rightward and leftward direction at a vertical interval, a first and a second connecting portions connecting the first and second arm portions respectively at their front end portion and base end portion, and a needle point portion following one side in the upward and downward direction of the first connecting portion. At least one of the first and second arm portions has at least one of the whole arm portion, an edge portion on one side in the upward and downward direction of the arm portion, and an edge portion on the other side in the upward and downward direction of the arm portion made arcuate.
|
