... nitrogen bulb 定氮球管 nitrogen ceramics 氮化物陶瓷 nitrogen compressor 氮气压缩机 ...
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Methods Porous ceramics were used as immobilization carrier. Optimum conditions for nitrate-nitrogen removal of downflow fixed-bed bioreactor were studied.
方法采用多孔陶粒作反硝化细菌固定化载体，研究下流式固定床生物反应器的适宜脱氮条件；
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