sea line of communicationとは 意味・読み方・使い方

Because of that, the administration built a large number of yamajiro (castle in a mountain) and facilities for communication from the northern part of Kyushu to the coast of the Seto Inland Sea, and set up a defense facility called mizuki (water fortress) in the front line Dazaifu (local government office in Kyushu region) so that it could reinforce their defenses.発音を聞く 例文帳に追加

そのため、北部九州から瀬戸内海沿岸にかけて多数の山城や連絡施設を築くとともに、最前線の大宰府には水城という防衛施設を設置して、防備を固めた。 - Wikipedia日英京都関連文書対訳コーパス