| 摘要 |
PROBLEM TO BE SOLVED: To provide a sight which does not force a shooter to take a posture of bending his neck upward at a sharp angle, even in case that the shooter shoots a target in a posture of lying on his belly. SOLUTION: A shooter can set his sight on a target by looking at it from the direction which forms a specified angle with a straight line including the line of sight directed to the target from the sight.
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