vacuum release valve
[海运英汉词典]
vacuum release valve真空放泄阀
是什么意思,vacuum release valve的解释,vacuum release valve的翻译
[进出口英汉词典] vacuum release valve
vacuum release valve
[海运英汉词典]
vacuum release valve是什么意思,vacuum release valve的解释,vacuum release valve的翻译
[进出口英汉词典] vacuum release valve