1·This is because of the impurity nitride in glass.
本文认为这是玻璃内部所含的杂质氮化物所致。
2·Current applications and acting mechanisms of rare-earth elements in several kinds of main nitride ceramic materials are reviewed in this paper. Future research directions are also discussed.
综述了稀土元素在几种主要氮化物陶瓷材料中的应用现状及其作用机制，并探讨了今后的研究方向。
3·A summary was made on the experimental research on the possibility of preparing carbon nitride crystal with high pressure, moderate pressure and conventional pressure synthetic method.
文章对采用高、中和常压的合成方法制取结晶碳氮化物的可能性实验研究进行了综述。
4·Researches on the superplasticity of advanced structural ceramics were systematically reviewed, emphasising on three kinds of ceramics:oxide ceramics, nitride ceramics and carbide ceramics.
针对先进结构陶瓷介绍了国内外超塑性的研究状况，比较系统地介绍了氧化物陶瓷、氮化物陶瓷、碳化物陶瓷的超塑性。
5·Sulfide, nitride can form acid rain, fine dust particles can affect people's health.
硫化物、氮化物会形成酸雨，细小尘埃颗粒会影响人的健康。