求翻译：　　吃过午饭，他父亲带他去看自家办的养猪场，他一边看一边摇头，对他父亲说：“在美国，养猪业已进入了全自动化，甚至只要将一头猪放进机器中，香肠便从另一头出来了。”　是什么意思？

　　After eating lunch, his father took him to see his own pig farm, watching while he shook his head and said to his father: "in the United States, pigs have been entering the fully-automated, or even just a pig into the machine, sausage from the other side came out.　”

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　　After eating lunch, his father took him to see his own pig farm, watching while he shook his head and said to his father: "in the United States, pigs have been entering the fully-automated, or even just a pig into the machine, sausage from the other side came out.　”