blast furnace crucible

例句：

1. 1. The blast furnace crucible is essential for the process of smelting iron ore.
   高炉坩埚是冶炼铁矿石过程必不可少的。
2. 2.The blast furnace crucible was used to hold the molten metal during the smelting process.
   在冶炼过程中，高炉坩埚用来盛放熔融金属。
3. 3. The blast furnace crucible was carefully cleaned and inspected before each use to ensure safety.
   每次使用前，都要仔细清洗和检查高炉坩埚以确保安全。