bismuth trioxide

例句：

1. 1.This compound is used as a catalyst in the production of lead-free batteries.
   这种化合物在生产无铅电池中用作催化剂。
2. 2. The antimonytrioxide was used to treat skin cancers.
   三氧化二锑用于治疗皮肤癌。
3. 3. The process involves heating the bismuth trioxide to produce a gasthat can be used for industrial purposes.
   该过程涉及加热铋三氧化物以产生可用于工业的气体。