ラムジェットエンジンだろう
ramujettoenjindarō
1. Ramjet engine, probably.
Noun
#349892
1. Ramjet engine, probably.
1. to expand; to swell (out)
1. engine
1. roller coaster
1. jet aeroplane; jet airplane
1. jet
1. forum
1. (drinks) coaster
2. roller coaster
3. coaster brake (on a bicycle)
1. pochette; pouch (usu. hung from the shoulder by a long cord) — explanation