1·VDF? Very – high – frequency Direction Finder?
甚高频测向器?。
2·I am calibrating radio direction finder or adjusting compasses.
我正在校准无线电测向仪或校正指南针。
3·Function test and calibration self-heterodyne curve for direction finder on sea trial.
航行试验中测向仪效用试验及自差曲线校正。
4·This article discourse upon the principle and system construction of Interferometer Direction Finder.
论文介绍了多波道干涉仪测向的系统构成及其原理。
5·In this paper, a Radio Direction Finder system is designed on the basis of the principle of Doppler Diretion Finder technology.
本文在对多普勒无线电测向技术深入研究的基础上设计实现了一套无线电自寻的系统。
6·We also analysed the influence of amplitude modulation and frequency (or phase ) modulation on Interferometer Direction Finder.
对三波道干涉仪测向结果不受幅度调制和频率调制（相位调制）的影响进行了数学分析。
7·A vector amplitude weighing method of direction finder composed of ridged horns is presented and analyzed using results of test.
论文对幅度复加权测向原理进行了详细推导，并利用实际测试结果进行了研究。
8·Doppler radio Direction Finder is a technology that measures the Angle between radio transmitter and the radio using Doppler effect (Doppler principle).
多普勒无线电测向技术即为利用多普勒效应测定无线电发射设备与接收设备之间夹角的一种技术。
9·This paper introduces the design idea of Lightning Direction Finder and lightning return stroke models. The technique of accurate orientation as well as its realization is discussed.
介绍了雷电方向探测的设计思想和地闪回击模型，讨论了地闪的精确定向技术及其实现，给出了雷电方向探测仪的主要技术性能和参数。
10·The particular app in question is a subway route finder that shows route signs when you point your phone one direction or another.
这里所提到的应用是一款地铁路线查询器，当你将手机指向一个方向时，它就会显示出路线标志。