碱性氮化物包括吡啶和喹啉.The basic nitrogen compounds include pyridines and quinolines.三 ( 8- 羟基 喹啉 ) 铝 ( Alq3 ) 是有机电致发光器件的 基础材料.Aluminum tris - ( 8 - hydroxyquinoline ) ( Alq _ 3 ) is one of fundamental materials for organic electr...
他划亮一根火柴，伸长胳膊举着。He struck a match, and held it at arm's length.她伸长脖子想看得更清楚些。She craned her neck to get a better view.他伸长胳膊把打火机递了过去。He offered his lighter at full stretch....
Extraction method of landfill gas was introduced based on practice experience.并根据实践经验介绍了抽取填埋气体的方法.Environmentalists say there is a high risk of pollution from the landfill site.环境保护工作者说废渣埋填地很可能造成污染....the cost of disposi...
Max held out his cup for a refill.马克斯递过杯子来要再续一杯。Refill packs are cheaper and lighter.补充包更便宜，也更轻。Refill and clean all salt and peppers, sugar bowls, and other condiments.清洁并续满所有的胡椒瓶、盐瓶 、 糖缸及其他调料.Can you give me two refill...
Methods: Fentanyl - Etomidate intravenous anesthesia were used for induced abortion in 120 patients.方法: 对120例人工流产术患者实施芬太尼 - 乙咪酯静脉麻醉.Objective : To explore the application of Fentanyl - Etomidate intravenous anesthesia in...