Your unsuspecting target will have a hard time 'timing' the location of the sound because the beeps will vary in intervals ranging from 2 to 8 minutes.

您不知情的目标将很难有一个'时间'声音的位置，因为不同的蜂鸣声将在2至8分钟不等间隔。

youdao

The ultrasonic ranging is used to design the plane location system with a high accuracy.

将超声波测距技术应用于物体的平面定位中，设计具有精确度较高的平面定位系统。

youdao

In this thesis, the EMW-based precise ranging technology was studied, a location system based on PTR8000 was proposed fulfilling coarse location.

本文针对井下人员定位系统，深入研究了基于电磁波测距的精确定位方法，并提出了一套基于PTR8000的井下人员定位系统方案。

youdao

The company's contract in Iraq is vast and encompasses numerous responsibilities that vary from one location to another, ranging from the upkeep of U.S. bases there to providing most of the basic services on the bases.

CNN: Sources: Contractor for military committed serious violations

The latest technology builds on the company's tracking and location systems experience in a variety of market sectors ranging from defence and security to consumer, industrial, and oil and gas.

ENGADGET: Cambridge Consultants develops indoor tech to pick up where GPS drops off