scavenging duct_新英汉石油技术词典
scavenging duct
[新英汉石油技术词典]
scavenging duct吹扫管
是什么意思，scavenging duct的解释，scavenging duct的翻译
吹扫管
scavenging duct_新英汉石油技术词典scavenging duct
[新英汉石油技术词典]
scavenging duct是什么意思，scavenging duct的解释，scavenging duct的翻译
