Extraction technology of vanadium from the sodium roasting, the non-salt oxidizing roasting, the stone coal soaking by acid (alkali) and its evolvement process were introduced.
介绍了钠化焙烧、无盐氧化焙烧、酸(碱)浸石煤等提钒的工艺及其演变过程。
Alternatively, these can be converted into a CMC composite material in a non-oxidizing gas atmosphere by a metal infiltration process with simultaneous reactive joining of at least two moulded parts.
也可以选择在非氧化气体氛围中通过渗金属过程在同时使至少两个成形件反应接合时将它们转换成CMC复合材料。
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