They use their unique beaks to filter the algae.
他们利用自己的独特喙过滤藻类。
All these features indicate that the organism should be a kind of lower class animal of filter feeder with certain affinity to Archaeocyathids but should not be classified into algae.
表明应是一种较低级的滤食性动物，可能与古杯动物有一定亲缘关系，不应将其归属藻类。
The results indicate that the predominant organism groups were a complicated ecosystem including bacteria, protozoa and algae in the biotrickling filter while it was only fungi in the biofilter.
结果表明：生物滴滤池中形成了由细菌、藻类及原生动物组成的复杂生态系统，而生物过滤池中真菌为优势微生物。
It is also indicated that the pre-ozonation can improve the removal efficiency of TOC and algae by aeration, and that the post-ozonation accelerates TOC removal by activated carbon filter.
同时臭氧预氧化可提高气浮对藻类和TOC的去除效率，臭氧中间氧化也有利于提高活性炭对TOC的去除。
Shellfish are primarily filter feeders, meaning that they strain large volumes of seawater through their bodies to concentrate food material such as microscopic algae.
贝类基本上是滤食动物，牠们的身体会过滤大量海水，聚集微小的藻类做为食物。
The result showed that as compared with quartz-sand filter media, the modified quartz-sand is more efficient in treatment of algae-laden water;
采用改性石英砂滤料强化过滤处理含藻水的试验结果表明，与石英砂滤料相比，改性石英砂滤料对含藻水具有优良的处理效果；
The result showed that as compared with quartz-sand filter media, the modified quartz-sand is more efficient in treatment of algae-laden water;
采用改性石英砂滤料强化过滤处理含藻水的试验结果表明，与石英砂滤料相比，改性石英砂滤料对含藻水具有优良的处理效果；
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