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動作原理 Operating principles

Wow! Here comes Setsuden-mushi.!
Chapter 5 Parents of Setsuden-mushi
5.3 Types and Features of Setsuden-mushi
5.3.1 Working without energy
Serially posted again in English on Tuesdays every other week.
わっ! 節電虫(益虫)が飛んできた!
第5章 節電虫の両親
5.3 節電虫の種類と特徴
5.3.1 ご飯を食べずに働く
隔週で火曜日に英語で連載中