tracker

音标发音

Or ‘tracker’?” he asks, still looking at my card like it’s going to disappear.
还有‘追踪者’”，他问道，仍然看着我的名片，生怕它会消失掉。
Developers only store some of the solar energy in a relatively small battery to operate the CPV tracker and the measuring system.
开发人员只将一小部分电能存入一块相对较小的电池中为CPV追踪系统和控制系统供电。
blog.sina.com.cn
Our advice: Another way to do this without looking like someone's batty Aunt Kathy is to record what you eat in a discreet food tracker app on your phone.
我们的建议：另外一种不用看上去像某人古怪的凯西阿姨的做法是：用手机上设计周到的食物跟踪应用程序记录你所吃的东西。

We'll figure a wayto lead the tracker away somehow. I don't know. But we have to do something.
Listen to me. James is a tracker.The hunt is his obsession. I read his mind.My reaction on the field set him off.
Okay, so the course thatthe tracker's on now is gonna lead him to a ballet studio?

Last spring, when Internet stocks were sizzling, magazine publisher Ziff-Davis issued a tracker for its ZDNet Web division.
FORBES: Trick or Track?

a person who is able to find animals or people by following the marks they leave on the ground as they move over it

A tracker is a person or animal that finds other people or animals by following the marks left by their feet and other signs that show where they have been.

跟踪器
Star sensor, also called star tracker, is a very high accuracy instrument for attitude determination.
星敏感器(又称为星跟踪器)是一种极高精度的姿态确定仪器。
搜索者(美国s—2反潜机)
追踪者