アコースティックエミッションです
akōsutikku emisshondesu
1. Acoustic emission.
Noun
1. Acoustic emission.
1. acoustic (instrument, music, etc.)
1. acoustic guitar
1. acoustic guitar
1. zero-emission
1. emission
1. acoustic emission
1. acoustic sound
1. zero-emission
1. If it were an acoustic guitar.; When it's an acoustic guitar.