chromic acid mixture

例句：

1. 1. This chromic acid mixture is used to clean the metal surface.
   这种铬酸混合物用于清洁金属表面。
2. 2.The chemical engineer mixed the chromic acid correctly to achieve the desired results.
   这位化学工程师正确地混合了铬酸，以获得预期的结果。
3. 3. The manufacturer of this product uses a chromic acid mixture as a key component in its production process.
   该产品的制造商在其生产过程中使用铬酸混合物作为关键成分。