smelting strength of blast furnace

例句：

1. 1.The steel mill is producing high-quality steel under the optimal smelting strength.
   这家钢铁厂在最佳的冶炼强度下生产高质量的钢材。
2. 2. The smelting strength of the blast furnace directly affects the quality of the final product.
   炼铁炉的冶炼强度直接影响最终产品的质量。
3. 3. To improve the smelting strength, we need to optimize the process parameters.
   为了提高冶炼强度，我们需要优化工艺参数。