过滤物料 meaning in English
filter material
Examples
- The filter materials should be cleansed at least once a week and replenished at least once a month
过滤物料应至少每星期清洁一次，以及至少每月补充一次。 - 19 the filter materials should be cleansed at least once a week and replenished at least once a month
19过滤物料应至少每星期清洁一次，以及至少每月补充一次。 - If spongy filter is used , more regular cleansing and replenishment of the filter materials should be carried out
如使用海绵过滤器，应更频密地清洁和补充过滤物料。 - 20 if spongy filter is used , more regular cleansing and replenishment of the filter materials should be carried out
20如使用海绵过滤器，应更频密地清洁和补充过滤物料。 - In addition , more regular cleansing and replenishment of filter materials should be conducted if the water quality is poor and or fish stock density is high
此外，如缸内的水质变差及或所饲养的活鱼数目较多，亦应更频密地清洁和补充过滤物料。