Sakuho relations means the lord-vassal relations between the emperor of China and the heads of neighboring states, and by making such relations, the regions under the rule of the heads of those states were ideologically incorporated into the principle of order of the Chinese emperor.
冊封関係とは、周辺国家の首長を皇帝の臣下として君臣関係を取り結ぶもので、このことにより周辺国家の首長の支配下にある地域は、観念的に皇帝の主宰する秩序原理に組み入れられた。