synthetic gem合成宝石,人造宝石syntheticadj.合成的；人造的；综合的；虚伪的n.合成物；人工制品synthetic-filament transducer人造纤维换能火警预测器synthetic dipole array waveform合成多极阵列波形synthetic wool jacquard blanket人造毛提花毯synthetic resin bonded laminate合成树脂层压板synthetic-based sealing fluid合成基密闭液synthetic rural domestic sewage模拟生活污水synthetic aluminium base grease合成铝基润滑脂synthetic pyrethroid insecticide拟除虫菊除虫菊酯杀虫剂synthetic temperature difference综合温差synthetic pyrethroids pesticides拟除虫菊酯类杀虫荆