短語詞組短語barycentric velocity 重心速度barycentric oscillation 質(zhì)心擺動barycentric referential 質(zhì)心蓡考系barycentric energy [物]重心能量barycentric system 重心系barycentric complex 重心複形barycentric element [天物]質(zhì)心要素barycentric notation 重心符號barycentric momentum 質(zhì)心動量barycentric coordinates 重心坐標(biāo)；質(zhì)心坐標(biāo) 返回 barycentric