英语词汇“Sir Francis”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	Sir Francis
释义	Sir Francis dreik德雷克1540～1596；英国海军上将、航海家；1577～1580年驾船航行世界的第一个英国人
随便看	Positron is how it was detected by ? positron isotope positronium positronium chemistry positronium chloride positronium formation positronium reaction positroniums positron lifetime positron lifetime measurement positron lifetime spectra Positron lifetime spectra parameters positron lifetime spectrometer positron lifetime spectroscopy Positron maission tomography positron microtron positron moderator positron radiation positron radiator positron radioactive tracer positron radioactivity positron radiopharmaceuticals positron ring detector system positrons positron scan