A new technique named self propagating high temperature synthesis was proposed to prepare V-based solid solution storage hydrogen alloys.
提出采用自蔓延高温合成法制备钒基固溶体贮氢合金的新工艺。
The V-EPC cast-in process was used to prepare the cast iron-based particles -containing composite. The distribution characteristics of the hardness and microstructure of the composite was studied.
采用V - E PC铸渗工艺制备铁基颗粒复合材料，并对复合材料硬度及显微组织分布特征进行了研究。
The half-metallocene of the elements V, Nb and Ta in VB group could be used in the polymerization of olefin to prepare polymer with rather narrow molecular weight distribution (1.05).
VB族元素钒、铌、钽的单茂金属化合物作为烯烃催化剂可得到分子量分布相当窄（1.05）的聚烯烃；
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