sand filter

常见例句

She has a bio-sand water filter in her home and is proud to be able to keep her family healthy with safe, potable water.
她在她的家里有一个生物沙水过滤器并且以能饮用安全、适于饮用水保持她的家庭健康而自豪。
Under the influent quality conditions, the biological sand-filter was ripened in 60 days with the natural culture of bacteria.
在试验进水水质条件下，通过自然培养，石英砂生物除锰滤池可在6 0天内培养成熟；
A novel combined process of permanganate composite chemical (PPC) preoxidation and BAC - sand filter was studied to remove THMFP by continuous flowing experiments.
通过动态连续流实验考察了高锰酸盐预氧化与生物活性炭-砂滤池工艺对THMFP 的去除效果。

In early 1998, as more bombs were found, and after an abortive attempt to filter out the ammunition, the navy abandoned the beach-replenishment project, dumping the sand into the sea instead.
ECONOMIST: California’s beaches: Out to sea The