filter crucible

例句：

1. 1. The scientist used a filter crucible to purify the water.
   科学家使用了一个过滤坩埚来净化水。
2. 2.The metalsmith was working on a filter crucible when he accidentally dropped it.
   金属匠在做一个过滤坩埚时不小心把它掉了下来。
3. 3. The engineer tested the new filter crucible for efficiency before using it in the production line.
   工程师在投入使用前测试了新的过滤坩埚的效率。