washed precipitate

例句：

1. 1. The water was so dirty that it had to be washed with soap before use.
   水太脏了，需要用肥皂清洗后才能使用。
2. 2.The scientist washed the precipitate off the filter and analyzed it for trace elements.
   科学家将滤网上的沉淀物洗净并分析其微量元素。
3. 3. The chemical reaction produced a washed precipitate that could be easily separated from the solution.
   化学反应产生了一种容易与溶液分离的沉淀物。