单词 ligroin 释义 ligroin Chem.|lgrn|Also ligron.[Etym. unknown: in quot. 1881 a. G. ligroin.]Any of various naphtha fractions with ranges of boiling points between 90 and 150C, used as solvents.1881Jrnl. Chem. Soc. XL. 1181 The author has investigated t...