hard type surfactant

例句：

1. 1. The newdetergent is designed to be more effective at removing tough stains from hard water.
   这款新清洁剂设计用于更有效地从硬水中去除顽固污渍。
2. 2. In order to improve the cleaning performance of the product, we have added a special hard type surfactant.
   为了提高产品清洁性能，我们添加了一种特殊的硬型表面活性剂。
3. 3.The hard type surfactant helps to break down grease and oil, making it easier for the dishwasher to clean.
   这种硬型表面活性剂有助于分解油脂和油渍，使洗碗机更容易清洁。