3,5,9-三甲基-11-乙基-7-(2,4-二甲基己基)十三烷的英文名称为什么是7-(2,4-dimethylhexyl)-3-ethyl-5,9,11-trimethyltridecane,而不是7-(2,4-dimethylhexyl)-11-ethyl-3,5,9-trimethyltridecane,或者是3-ethyl-5,9,11-trimethyl-7-(2,4-dimethylhexyl)tridecane.中英文命名时难道编号不同吗?tri-,di-之类的词头不是不参与排序吗?