mixed-bed demineralizer

例句：

1. 1.The mixed-bed demineralizer is an essential part of the desalination process.
   混合床脱盐器是淡化过程的一个关键环节。
2. 2. The design of the mixed-bed demineralizer has been optimized to improve efficiency.
   混合床脱盐器的设计方案已经优化，以提高效率。
3. 3.The mixed-bed demineralizer is used to remove minerals from seawater before it is treated.
   混合床脱盐器用于从海水中去除矿物质，以便进行后续处理。