Aerobic bacteria chew up the ammonia and turn it first into nitride and then to nitrate .

好氧菌将氨先转化成氮氧化物再转化成硝酸盐。

Research on static sealing by ferric nitride magnetic fluid .

氮化铁磁性流体密封研究。

The researchers used a gallium nitride semiconductor in the " proof of concept " tests .

研究者们在“概念验证”实验中使用的半导体材料是氮化镓。

Silicon nitride is anti-magnetic and resistant to corrosion by most substances .

氮化硅是一种反磁性和耐腐蚀大多数物质。

The ceramic they experimented with was silicon nitride , a material much admired in the aerospace industry .

实验用的陶瓷材料是氮化硅，一种在航天领域广为应用的材料。