【電気】 帰還(きかん), フィードバック 《出力側のエネルギーの一部を入力側へ返還する操作》. (the method by which Portion of the output of a system is returned to its input in order to control its even further output) My rating is 5 away from ten (I overestimated it a little due to the drama and a handful of great characters, https://wikimapia.org/external_link?url=https://www.payporter.com.tr/en/zolotaya-koronapay-money-transfer