furnace run

例句：

1. 1.The furnace is running at full capacity.
   熔炉正在满负荷运行。
2. 2. The furnace runs hotter than usual.
   熔炉比平时运行得更热。
3. 3. The furnace run is essential for the production process.
   熔炉运行对于生产过程至关重要。