DIN EN 21680-1 (1991-11) 标准详情
- 标准号：DIN EN 21680-1 (1991-11)
- 中文标题：
- 英文标题：Acoustics - Test Code For The Measurement Of Airborne Noise Emitted By Rotating Electrical Machinery - Part 1: Engineering Method For Free-field Conditions Over A Reflecting Plane
- 标准类别：德国标准DIN
- 发布日期：
