求翻译：公司的国内营销网络遍布华南、华东、华中、西南、西北等全国20个省市自治区，先后成立了多家销售分公司，在福建、北京、广东、四川、重庆、江西、安徽、海南、吉林、广西、山东、陕西、贵州、浙江等省市设立了办事处，均有营销工程师及技术工程师常驻；在新加坡、印度设立了办事处，产品销往东南亚、中东、非洲、南美等地。是什么意思？

The company's domestic marketing network throughout the country's 20 provinces, cities and autonomous regions in South China, East China, Central China, Southwest, Northwest, and has set up a number of sales branches in Fujian, Beijing, Guangdong, Sichuan, Chongqing, Jiangxi, Anhui, Hainan, Jilin ,

The company's domestic sales network throughout southern, eastern, central and south-west, north-west, and the 20 provinces, municipalities, and autonomous regions, and have established a sales office, located in Fujian, Beijing, Guangdong, Sichuan, Chongqing 4, Jiangxi, Anhui, Guangxi, Hainan, and