求翻译：③对于美国来说,北部的航运业和纺织工业是靠南部奴隶制经济发展起来的；中西部农民生产的猪肉、谷物和威士忌酒在南部找到了市场，获得了农业的繁荣。是什么意思？

③ For the United States, north of the shipping industry and textile industry is relying on the economic development of southern slavery up; Midwest farmers' production of pork, grain and whiskey in the south to find a market, access to agricultural prosperity.

3 In the case of the United States, the shipping industry and textile industry in northern southern slavery, depend on economic development in the central and western regions; the peasants' production of pork, cereal and whisky in the southern found a market, access to the agricultural prosperity.

③South regarding US, the north shipping industry and the textile industry is depends on the slavery economy to develop; The mid-west farmer produces the pork, the grain and the tiger sweat had found the market in the south, has obtained the agricultural prosperity.

③ United States, Northern maritime industry and textile industries rely on southern slavery developed economies; Midwest farmers produced pork, grains and whisky in southern found market, acquired agricultural prosperity.

③South regarding US, the north shipping industry and the textile industry is depends on the slavery economy to develop; The mid-west farmer produces the pork, the grain and the tiger sweat had found the market in the south, has obtained the agricultural prosperity.