词汇	至总重量
释义	至总重量医ad pond om；ad pond. om.；ad pondus omnium
随便看	positron emission transaxial tomography positron-emission transaxial tomography positron emission transaxial tomographypett positron emission transaxial tomographyPETT positron emission transverse tomography positron-emission transverse tomography positron emitter positron emitters positron-emitting positron emitting radionuclide positron factory positronia positronic Positron is how it was detected by 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