crude nitrogen
... 粗石油脑* CRUDE NAPHTHA* 粗氮气 CRUDE NITROGEN 粗正丁烷 CRUDE NORMAL BUTANE ...
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介绍和讨论利用粗颗粒钛粉末净化普通氮气及其在钛表面气体氮化工艺中的应用。
This article introduces and discusses the purification of ordinary nitrogen by coarse titanium powder and its application in gas nitridation technology of titanium surface.
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