airspeed calibration 中文意思是什麼
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Schedule for tables relating to altitudes, airspeed and mach numbers for use in aeronautical instrument design and calibration
航空儀表設計和校準用高度空速和馬赫數表 -
Verification regulation of measuring apparatus for calibration of mine airspeed measuring instrument
礦用風速測量儀表檢定裝置檢定規程
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