溶鉱炉

1. Origins, structure, and basic meaning

• Structure: 溶鉱炉 is read as ようこうろ and means a blast furnace used to melt iron ore at high temperatures.
• Basic usage: It can identify the furnace used in a factory or a furnace whose interior is inspected after operations stop.

2. Common pitfalls and similar expressions

• Melting iron ore
  • 溶鉱炉 is the furnace used to melt iron ore at high temperatures. Example: 工場では溶鉱炉を使って鉄鉱石を高温で溶かします。
• Inspecting a stopped furnace
  • 溶鉱炉 is the furnace that a worker inspects after it has been taken out of operation. Example: 操業を止めた溶鉱炉の内部を作業員が点検しました。