extraction method by dithizone carbonterachloride四氯化碳: carbon tetrachloride; tetrac ...双: two; twin; both; dual硫: sulphur; sulfur踪: footprint; track; trace; tra ...萃取: extract; extraction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:四氯化碳双硫踪萃取法，即可在微信中查询翻译
