Given that position information does not change too often, it is usually sufficient to establish an initial position fix and then acquire updates periodically after that.

在位置信息并非如此频繁的发生改动的情况下，获取一个初始的位置之后，周期性的更新位置就足够了。

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This paper introduces a method to position-fix point of impact when shooting ground targets from aircraft cannons and a way to realize automatic scoring.

本文介绍一种用于航炮打地靶的弹着点定位方法及实现自动报靶的途径。

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But, precisely because they are outsiders, they are usually in a poor position to fix them.

NEWYORKER: The Hot Spotters

Each missile comes with a terrain contour matching radar, which compares a stored map reference with the actual terrain to fix the missile's position.

BBC: Tomahawk cruise missile

If you're pushing the position that the rich should pay more to help fix the deficit, it doesn't quite follow to employ a tax dodge, says Dennis Kelleher, president of the Washington-based public interest group Better Markets Inc.

CNN: A case of Wall Street greed gone too far