free nitrogen fixation 游离氮气固定
Free Amino Nitrogen 游离氨基酸氮 ; 游离氨基氮 ; 氨基氮
free nitrogen source 游离氨基氮
free nitrogen content 游离氯含量
fixation of free nitrogen 游离氨的固定
free nitrogen fixing bacteria 游离氮固定菌
isolated free nitrogen fixingbacteria 自生游离氮固定细菌
Oxygen free nitrogen pressure testing is now widely recommended.
现在广泛使用的是无氧氮气压力检测。
Within the nodules the bacteria convert free nitrogen to nitrates, which the host plant USES for its development.
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。
The nitrogen Deoxo Vessel contains a fixed bed of free copper catalyst which removes oxygen from the nitrogen stream by oxidation of copper to copper oxides.
氮气脱氧罐中装有一个游离铜催化剂的固定床，通过将铜氧化成氧化铜把氧气从氮气中脱除。
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