英语词汇“effective relative aperture”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	effective relative aperture
释义	effective relative aperture 有效f数
随便看	rotating loader Rotating load on inner ring Rotating load on outer ring rotating long coil rotating loop rotating loop antenna rotating-loop antenna rotating loop beacon rotating loop radiobeacon rotating loop radio beacon rotating loop station rotating-loop transmitter rotating lubricating device rotating lubricating device axle-box rotatingly sliding cam rotating machine rotating machinery rotating machines rotating machine sets rotating magnet rotating magnet head rotating magnetic amplifier rotatingmagnetic apparatus rotating magnetic dipole rotating magnetic field