例句與用法

1. In the case of the unsaturated alcohols , such as hydroxyethyl acrylate ( hea ) , the paes showed the photo - alignment property to the nematic liquid crystals with the pretilt angle of 0 . 60 ? secondly , three kinds of fluoro - containing diamine monomers were prepared via the reduction reactions of the corresponding dinitro compounds , which were synthesized via the nitro nucleophilic displacement reactions of 3 , 5 - dinitro - 5 - trifluoromethyl benzene with diphenol compounds
   此外，本論文還設計并通過3 ， 5 -二硝基三氟甲苯與二酚化合物的硝基親核取代反應制備了二硝基化合物，將其還原最終合成了三種間位取代的含氟二胺單體tfpda 、 tfbpda與tfmda ，并對其聚合行為進行了研究。