With full circuit self-test function and anti-jamming features.
具有全电路自检功能和抗干扰性强等特点。
Signals of self test realize the function of self test of the grating auto testing instrument.
由自检信号产生电路产生自检信号实现光栅自动测试仪的自检功能。
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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