在19世纪中期，美国农村劳动力占社会总劳动力的比重为63%，到了19世纪末期美国已实现了工业化。
In the mid-19th century, the rural labor force to the total U.S. labor force accounted for 63%, to the late 19th century, the United States has achieved industrialization.
这个国家一直在稳步实现工业化。
产品再经过精密提纯，在品质方面达到了国外公司产品的同等水平，价格具有明显优势，且易实现工业化量产。
The quality of the purified products could be equal to that from companies overseas. However, the price was competitive. And the technology could be industrialized easily.
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