Anh
trepidation
vibration
Đức
Erschütterung
Vibration
Zittern
Pháp
trépidation
trepidation,vibration /SCIENCE,ENG-MECHANICAL/
[DE] Erschütterung; Vibration; Zittern
[EN] trepidation; vibration
[FR] trépidation; vibration
Nervous uncertainty of feeling.