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1دورية أكاديمية
المؤلفون: Yongjie Fu
المصدر: The Journal of Engineering (2019)
مصطلحات موضوعية: weapons, calibration, theodolites, gyroscopes, mirrors, optical collimators, reliability, gyro north-seeker calibration system, gyro theodolite, north-seeking precision accuracy, autocollimation function, north orientation equipment, collimators, metrological calibration, size 1 m, Engineering (General). Civil engineering (General), TA1-2040
وصف الملف: electronic resource