diethylenetriamine pentamethylene phosphoric acid二: two乙: the second of the ten Heaven ...三: three胺: amine五: five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:二乙三胺五亚甲基磷酸，即可在微信中查询翻译
