floating head vent_石油英汉词典
floating head vent
[石油英汉词典]
floating head ventn.浮头排出管
是什么意思，floating head vent的解释，floating head vent的翻译
n.浮头排出管
floating head vent_石油英汉词典floating head vent
[石油英汉词典]
floating head vent是什么意思，floating head vent的解释，floating head vent的翻译
