真しん空くう容よう器きしんくうようきじ字FuriganaMeanings1nounvacuum vessel; vacuum chamberTechnical term used in physics, engineering, and manufacturing for a sealed container from which air has been removed.実じっ験けんでは、真しん空くう容よう器きの中なかに試し料りょうを入いれて加