词典释义：
双语例句
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Many studies of catalysts for hydrogenation of natural oils have been made, in which Cu-Ni bibasic catalyst and ni unitary catalyst are the two mainstreams.
油脂加氢催化剂，国内外已进行了大量的研究，其中铜镍二元催化剂和单元镍催化剂是主要的研究方向。