短語詞組短語graviton covalency 引力子共價項graviton meson f 介子three -graviton vertex 引力子三頂點4 derivative graviton vertex 導(dǎo)數(shù)頂點three graviton vertex 引力子三頂點graviton self -energy 引力自能graviton self energy 引力子自能derivative graviton vertex 導(dǎo)數(shù)頂點graviton free propagators 引力子自由傳播子 返回 graviton