sign of free gas游离: dissociate; drift away气体: gas; gaseous fluid征: go on a journey; travel游离气体: free gas游离气体流: dissociated gas flow下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:游离气体征，即可在微信中查询翻译
