This function does a good bit of position-munging, but it all boils down to a simple idea: Keep constant the precise distance between the mouse cursor and the target object.

该函数做很多位置整理(position - munging)工作，但都可归结为一个简单的思想：不断保存鼠标光标与目标对象之间的精确的距离。

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In stripping his training program to its essence, Pierce runs each of his three workouts at a specific target pace and distance.

为了使他的训练达到应有的目的，Pierce在三天的高难度训练中都是按一定的速度和路程来进行跑步训练的。

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The resulting technology will allow unattended ground sensors to be launched into target areas from a distance.

这将允许无人值守地面传感器（UGS）可以被发射到一定距离之外的区域。

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To determine the distance to the target, the gunman shines a laser rangefinder attached to the rifle at whatever is shielding the enemy.

ECONOMIST: Military technology

The Turkish round of the tournament will act as a trial for the compound discipline of the sport - featuring a 50m distance and a smaller target - in anticipation of a bid to be included in the 2016 Olympics.

BBC: Nicky Hunt satisfied with Euro archery finish

Would-be submitters must be able to fabricate MEMs that can be implanted into bugs at the pupa stage for integration into biological systems during development, and must prove that they can guide their creations to within three meters of a target from a minimum distance of 100 meters.

ENGADGET: DARPA solicits bids for insect cyborgs