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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.

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Countermeasures include a Type 921 - A radar warning receiver and direction - finder .

对策系统包括 921-A 型雷达告警接收器和 定向仪.

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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.

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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.

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The first section of this paper discusses the theory of the Doppler Radio Direction Finder technology.

本文首先分析了多普勒无线电测向技术的基本原理.

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