标题: BS EN ISO ∕ TR 11688-2:2001 Acoustics - [打印本页] 作者: hgundas 时间: 2019-12-28 01:13:09 标题: BS EN ISO ∕ TR 11688-2:2001 Acoustics -
[attach]217272[/attach] BS EN ISO ∕ TR 11688-2:2001
Acoustics -
Recommended practice
for the design of
low-noise machinery and
equipment -
Part 2: Introduction to the physics of
low-noise design