Siemens furnace

例句：

1. 1. The Siemens furnace is a crucial part of the manufacturing process.
   西门子炉子是制造过程中至关重要的一部分。
2. 2. The Siemens furnace was used to heat up the metal before it was machined.
   西门子炉子用于在金属被加工之前加热它。
3. 3. The Siemens furnace is designed to produce high-quality steel products.
   西门子炉子设计用来生产高质量的钢材产品。