一种定义
四种语言
0,1,2
- 德國
- 英語
- 中國
- 西班牙語
减少 (n)
Untersetzung (f)
reduction (n)
Noise reduction is a key component of occupational health and safety.
Under certain conditions, reduction can produce a resultant with a value of zero.
The machine frame, seals for cleanliness and noise reduction and windows, doors and panelling.
