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- Secondary sludge from the clarifier can be stored aerobically or anaerobically in a sludge holding tank. 二沉池中的污泥可以以厌氧或好氧方式储存在污泥池中。
- Secondary sludge from the Bio-Clarifier unit is returned to the pretreatment system for storage and digestion. 生物沉池设备中排出的污泥回流到预处理系统中储存消化。
- Sludge liquor is recirculated in the secondary system. 污泥水回流到二级处理系统。
- Her age is of secondary interest. 她的年龄不太重要。
- In secondary school, children get more advanced knowledge. 在中学，孩子获得更深一些的知识。
- A secondary matter; a side issue. 次要的第二位的事; 较次要的问题
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- secondary sludge 二次污泥
- The government introduced universal secondary education years ago. 几年前，政府就倡导普及中等教育。
- Our aim is that all children complete secondary education. 我们的宗旨是让所有孩子完成中等教育。
- Many older people still believe that women's careers are secondary. 许多年岁大一点的人仍然认为妇女的职业生涯并不那么重要。
- A thick, messy substance, such as sludge. 粘糊糊的东西粘稠肮脏的东西，如软泥
- All other considerations are secondary to his safety. 现在首先要考虑的是他的安全，其他事都是次要的。
- In secondary school, students get more advanced knowledge. 在中学里，学生获得更深一些的知识。
- There was some sludge at the bottom of the tank. 油箱底有油泥。
- Repairing technical requirement for sludge pump ca. 绞吸式挖泥船泥浆泵泵盖修理技术要求。
- Repairing technical requirement for sludge pump ru. 绞吸式挖泥船泥浆泵防磨环修理技术要求。
- Repairing technical requirement for sludge pump sh. 绞吸式挖泥船泥浆泵耐磨衬板修理技术要求。
- Repairing technical requirement for sludge pump w. 绞吸式挖泥船泥浆泵叶轮修理技术要求。
- Effect of bacterial sludge on crops growth. 菌泥对作物生长影响的研究。
