Correction for drift caused by the adoption of rifling in big guns was approximated by inclination of the rear sight bracket.

并且靠稍微偏移后瞄准座来修正大型火炮因膛线所带来的偏流。

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The sight telescope was mounted in such a way that the line of sight could be offset from the axis of the bore of the gun to correct for range, drift, and relative motion of gun and target.

这种瞄准镜底座是可以转动的，使得瞄准线能够偏离炮膛轴线以修正射程，偏流及火炮与目标之间的相对运动。

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Out of sight, out of mind, people drift apart.

眼不见，心不烦，人就渐渐疏远了。

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