| 摘要 |
<p>The telescopic sight is particularly for hunting rifles, having crossed threads in the focal plane of the lens. These are reinforced by strips, and are adjustable vertically sideways, the strips ending before the graticule. The horizontal thread (9) between the strip ends (10,11,12) runs at the level of the top edges (11a,12a) of the lateral strips (11,12). The design allows accurate aiming in twilight conditions.</p> |
