Today, it is translated as "大統領" to mean a head of republic, but, at that time, since readers had no knowledge of that kind, it was considered that, even if they used a newly created word, readers could not understand correctly and it was determined to express pronunciation of the work in Chinese characters.
現在では共和国元首という意味で「大統領」と訳されるが、当時にあっては読者にそういう知識は無かったので新造語をあてても、正確に読者に伝わらないと考えられ、そのまま言語の音を漢字に置き換えたものである。