Period Tracker月经跟踪
star tracker[航] 星体跟踪器;星跟踪式定位器;星体追踪仪
Tracker Fund盈富基金;追踪基金;指数追踪基金;指数基金
eye tracker眼睛追踪器
solar tracker太阳跟踪器;踪系统
Mobile Tracker动追踪;移动定位;包括手机防盗追踪
Shadow Tracker猎影计划
tracker device跟踪装置
Flight Tracker实时提供航班信息;选报课程;航班跟踪;教师评分
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。
参考来源 - 基于星敏感器的星模式识别算法及空间飞行器姿态确定技术研究N-COUNT（可数名词） 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. 追踪者