论坛首页 › ISO 国际标准 › ISO 6798-2-2020 Reciprocating internal combustion engines — Measurement of sou

rwlle001 发表于 2021-6-2 14:35:52

ISO 6798-2-2020 Reciprocating internal combustion engines — Measurement of sou

ISO 6798-2-2020 Reciprocating internal combustion engines — Measurement of sound power level using sound pressure — Part 2 Survey method

admin 发表于 2021-6-9 16:24:59

谢谢您的分享，金币已奖励！

查看完整版本: ISO 6798-2-2020 Reciprocating internal combustion engines — Measurement of sou