lanthanum disulfide二: two硫化: vulcanization; vulcanizing镧: lanthanum硫化镧: lanthanum sulfide氧代硫化镧激光器: lanthanum oxysulfide laser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:二硫化镧，即可在微信中查询翻译
