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。
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。
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。
With the increasing application of the power cables, it is necessary to constantly improve the accuracy ranging of cable fault location.
随着电力电缆应用的增多，对电缆故障测距的精确度要求也不断提高。
With the increasing application of the power cables, it is necessary to constantly improve the accuracy ranging of cable fault location.
随着电力电缆应用的增多，对电缆故障测距的精确度要求也不断提高。
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