坑冶
坑冶-
唐代全国经济重心南移以后，吴地有色金属采矿的坑冶与产量更有了大幅度增长。
After the economic center moved to the South in the Dang Dynasty non-ferrous metal industry developed greatly .
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方法应用医用数理统计法对云锡矿工肺癌高危人群（年龄≥40岁，坑冶龄≥10年）痰细胞学检查结果进行分析。
Methods The data of cases and occupational high risk population for lung cancer among tin miners ( Age ≥ 40 years old and worked underground and / or at smeltery ≥ 10 years ) were analyzed .