根瘤内的固氮菌将游离氮转化为硝酸盐，被宿主植物在发育中利用。
Within the nodules the bacteria convert free nitrogen to nitrates, which the host plant USES for its development.
在实际工程中大多采用氨氮吹脱法对猪场废水中的游离氨入行吹脱。
Most of the actual project using ammonia stripping method farms free ammonia in the wastewater to stripping.
猪场废水中的氨氮浓度高，大多以铵离子和游离氨的状态存在。
Pig farm wastewater in high concentration of ammonia , ammonium ions and are free to the state of ammonia exist.
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