sand filter blanket

例句：

1. 1. The sand filter blanket is used to remove fine sediment from the water before it reaches the treatment plant.
   沙滤布垫用于在水到达处理厂之前去除细小的沉积物。
2. 2.During the construction of the new wastewater treatment plant, we used a sand filter blanket to improve the efficiency of the filtration process.
   在新废水处理厂的建设过程中，我们使用了沙滤布垫来提高过滤过程的效率。
3. 3. The sand filter blanket was designed to prevent the buildup of organic matter in the water system.
   沙滤布垫被设计用来防止水系统中有机物的积累。