单词 halogen 释义 halogen Chem.|hldn|[mod. f. Gr. ἅ, ἁ- salt + -gen; cf. F. halogne]An element or substance which forms a salt by direct union with a metal. The halogens are chlorine, fluorine, bromine, iodine, and the compound cyanogen. In mod. use, a...
单词 halogen 释义 halogen n (chemistry 化) any of the chemical elements fluorine, chlorine, bromine and astatine which form salts by simple union with a metal 卤素 [attrib 作定语] halogen lamps/headlights 卤素灯[前灯]. 英汉双解词典包含38652条英汉词条,...