Jisho

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しんくうれっしゃ 真空列車
Noun
1. vactrain; vacuum tube train
Wikipedia definition
2. VactrainA vactrain (or vacuum tube train) is a proposed, as-yet-unbuilt design for future high-speed railroad transportation. It is a maglev line run through evacuated (air-less) or partly evacuated tubes or tunnels. The lack of air resistance could permit vactrains to use little power and to move at extremely high speeds, up to 4000–5000 mph (6400–8000 km/h), or 5–6 times the speed of sound at sea level and standard conditions.
Read “Vactrain” on English Wikipedia
Read “真空チューブ列車” on Japanese Wikipedia
Read “Vactrain” on DBpedia

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