crucible kiln

例句：

1. 1. The scientists used a crucible kiln to test their new material.
   科学家们使用坩埚窑来测试他们的新材料。
2. 2. The crucible kiln was essential for the process of melting metals.
   坩埚窑对于熔化金属的过程至关重要。
3. 3. The crucible kiln was used to produce high-quality steel.
   坩埚窑被用来生产高质量的钢材。