Use (simple) tracking systems.

使用(简单的)跟进系统。

youdao

These are both examples of tracking systems.

这些都是追踪系统的实例。

youdao

Bug-tracking systems - Such systems are necessary evils.

Bug跟踪系统—这些系统是必要的。

youdao

Lawmakers in the United States have expanded an investigation into the use of location-tracking systems on mobile devices.

VOA: special.2011.05.02

They combine the highest quality 3D lenses from Volfoni and the best in class tracking systems.

ENGADGET: SMI Eye-Tracking 3D Glasses use rim-based cameras to adjust perspective

Eye-tracking systems are fixed into screens to gather data so the images can be personalised.

BBC: Shopping: The new tactics to get you spending

With applicant tracking systems key words are everything, making a generic CV of little use.

BBC: Beating the recruitment machines