crucible oven

例句：

1. 1. The scientist used a crucible oven to test the new material's properties.
   科学家使用坩埚炉测试新材料的性质。
2. 2. The crucible oven was essential for melting metals and casting them into molds.
   坩埚炉对于熔化金属并将其倒入模具中至关重要。
3. 3. The crucible oven was used to heat up the metal before it could be shaped.
   坩埚炉用于加热金属，以便可以塑形。