常見例句雙語例句An experiment in the late '90s managed to generate from a vacuum gamma photons and an occasional electron-positron pair.上世紀(jì)九十年代下旬的一次實驗試圖從真空產(chǎn)生伽馬光子以及偶電子-正電子對。In this case, the telltale signal is gamma-rays at energies of 511,000 electron volts -- evidence that an electron/positron pair has annihilated.在這種情況下,特征信號是能量為0.511MeV的伽馬射線,這是一對電子-正電子對湮滅的證據(jù)。The electron-positron pair may survive without recombining .電子-正電子偶可以存在下來而不再復(fù)合。translation-dictionary.net 返回 electron positron pair