The better result was obtained by the high temperature surface treatment of carbon fiber under the atmosphere of nitrogen.
实验的结果表明：在氮气保护下，碳纤维的高温表面处理效果较好。
The preparation of aluminium nitride powder by means of direct nitridation under pressurized nitrogen atmosphere and carbothermal nitridation of alumina is studied.
对在加压氮气中金属铝粉的直接氮化和氧化铝粉的碳热还原氮化法制备氮化铝粉末进行了研究。
The furnace atmosphere was calculated under the condition of carburizing in the nitrogen-methanol based atmosphere in this paper.
本文是采用氮、甲醇基渗碳气氛渗碳，对炉内气氛进行计算。
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