您要查找的是不是：
- 低DO,亚硝酸氮积累 DO
- 亚硝酸氮积累 nitrite accumulation
- 低DO low DO concentration
- 低DO紊动床内有机物对硝化过程的影响 Influence of Organic Matters on Nitrification at Low DO in Biological Turbulent Bed Reactor
- 氮积累 Nitrogen accumulation
- 前置反硝化生物脱氮工艺实现亚硝酸氮积累的试验研究 Experimental Study of Nitrite Accumulation in Pre-Denitrification Biological Nitrogen Removal Process
- 低的 low-lying
- 氮积累量 N accumulation
- 低成本 low cost
- 亚硝酸氮 nitrite nitrogen
- 高低 (adv) simply; just
- 硝态氮积累 NO3-N accumulation
- 偏低 on the low side
- 低端 low end
- 氨氮 ammonia n
- 较低 lower
- 硝酸氮或亚硝酸氮 nitrogen as nitrate or nitrite
- 低点 low
- 低效率 ineffectiveness
- 植株氮积累量 accumulation amount of nitrogen in shoot
