单词	J/psi particle
释义	J/psi particle noun ˌjā-ˈsī-  -ˈpsī- : an unstable neutral fundamental particle of the meson group that has a mass about 6000 times the mass of an electron called also J particle, J/psi, psi particle Word History First Known Use 1977, in the meaning defined above
随便看	rozelles Rozi rozis rozwi rozwis rozzer red stars red steenbras red stele red stopper red stringybark red stripe red striped spider red stuff red stumpnose red sumac red sunflower red suture red tai red tail snapper red tape red tassel flower red tea red thread red three-awn

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