标题: ISO 6798-1-2020 Reciprocating internal combustion engines — Measurement of sou [打印本页] 作者: rwlle001 时间: 2021-6-2 14:34:47 标题: ISO 6798-1-2020 Reciprocating internal combustion engines — Measurement of sou
ISO 6798-1-2020 Reciprocating internal combustion engines — Measurement of sound power level using sound pressure — Part 1 Engineering method 作者: admin 时间: 2021-6-9 16:24:56