So finding and tracking all the asteroids that could cross Earth's path would allow officials to issue warnings and potentially provide time to deflect dangerous ones.

所以我们需要寻找和跟踪所有可能与地球运行轨迹相交的小行星，这样专业人员可以提前发出警告，就可能有时间扭转危险小行星的运行方向。

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In the seam tracking system, the motion of the cross slipper has an important effect on the torch movement.

十字滑块的微动特性对焊缝跟踪系统中焊枪的运动有着重要影响。

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In the process of multiple target tracking, sonar usually loses track of cross-moving targets.

为解决在多目标跟踪过程中，声纳存在交叉运动目标失跟问题。

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According to a report from the Verge, Microsoft is developing a cross-application exercise-tracking app paired with a heart-rate monitor for the Kinect.

FORBES: Report: Microsoft Working on "Kinect Play Fit" With Heart-Rate Monitor

The discussion established that while the B-2 may occasionally be detected by some radars, its stealth technology reduces the radar cross-section of the B-2 to the point where radar tracking of the requisite continuity and accuracy is impossible.

CENTERFORSECURITYPOLICY: Roundtable Discussion On The B-2 Bomber