1·An unsaturated hydrocarbon belonging to the alkene homologous series.
不饱和碳氢化合物，属于烯烃同系物。
2·The invention disclosed the preparing method of selective hydrogenating catalyst of unsaturated hydrocarbon.
本发明公开了一种不饱和烃选择性加氢催化剂的制备方法。
3·And color stability of diesel fuel were affected by unsaturated hydrocarbon, alkyl indole, methyl - carbazole, aniline and phenol.
柴油色度安定性主要与其中的不饱和烃、烷基吲哚、甲基咔唑、苯胺、苯酚等有关。
4·Olefin (or alkene) Any unsaturated hydrocarbon containing one or more pairs of carbon atoms linked by a double Bond (see covalent Bond, saturation).
烯烃：含有一对或多对由双键连接的碳原子的一类不饱和烃。
5·A solvent resistant adhesive obtained by the crosslinking of a hydroxyl or urea or hydrocarbon terminated unsaturated polyurethane or polyurethane-urea polymer with a peroxide or a silicone hydride.
耐溶剂粘合剂，其通过使用过氧化物或硅烷来交联羟基或脲或烃封端的不饱和聚氨酯或聚氨酯-脲聚合物而获得。