If debris in the water system continues to cause fouling, a strainer can be installed upstream of the backflow assembly.
如果水系统内的碎片继续造成污染，则需要在防回流阀总成的上游安装一个过滤器。
2
Our kidneys are part of our body's urinary system and serve like a strainer or filter.
肾脏是人体泌尿系统的一部分，起着过滤的作用。
3
This paper describes the improvement of the locomotive air filter and lubricating oil filter, on-board oil heating, clean system and the strainer core in windy and sandy area in details.