1)carbon tetrafluoride四氟化碳
1.The method how to remove carbon fluoride impurities, for example ethane hexafluoride (C_(2)F_(6)), from raw carbon tetrafluoride (CF_(4)) in a medium-pressure and low-temperature (-60 ℃,2.讨论了通过低温加压精馏(-60℃、2 0MPa)除去四氟化碳中六氟乙烷等氟碳杂质,以达到4N级四氟化碳对氟碳杂质浓度的要求。
2.In the article, mostly works are concerned for carbon tetrafluoride standard gas,supply a gap of our country in this field,and explore the new technique of use electron balance to make up standard gas.本文的主要工作是研制氮中四氟化碳标准气体,填补我国在这一领域的空白,并探索应用电子天平配制标准气体的新方法。
3.In the occurrence of arcs discharges, spark discharges and corona discharges, sulfur hexafluoride (SF6) would be decomposed to complicated byproducts such as sulfur dioxide (SO2), carbon tetrafluoride (CF4), etc.六氟化硫(SF6)气体在电弧、电火花和电晕放电的作用下会发生分解,产生二氧化硫(SO2)、四氟化碳(CF4)等分解产物。
英文短句/例句
1.Method Improvement of Determination of Air and Tetrafluoromethane content in Sulfur Hexafluoride by Gas Chromatography六氟化硫气体中空气和四氟化碳含量检测方法的改进
2.Investigation of Carbon Tetrafluoride Treatment by Atmospheric Microwave Plasma常压下微波等离子体处理四氟化碳的研究
3.The Study of Electroless Composite Ni-P-PTFE-SiC Plating;化学复合镀镍磷聚四氟乙烯碳化硅的研究
4.a flammable gaseous fluorocarbon used in making plastics (polytetrafluoroethylene resins).一种易燃的气态碳氟化合物，用于制塑料（聚四氟乙烯树脂）。
5.non-fully halogenated CFC非全卤化氯氟碳化合物
6.Asymptotic Homogenization Theory for Composite Material Effective Mechanics Property: CF Reinforced PTFE;均匀化理论研究碳纤维改性聚四氟乙烯力学性能
7.Study on Extruding Polytetrafluoroethylene /Polypropylene Assisted by Supercritical CO_2;超临界二氧化碳辅助挤出成型聚四氟乙烯/聚丙烯的研究
8.CFC refrigeration fluid氯氟碳化合物制冷液
9.chlorofluorocarbon refrigerant氯氟碳化合物制冷剂
10.Advances in the Study of Polytetrafluoroethylene-like Fluorocarbon Film Deposition;聚四氟乙烯结构氟碳聚合物薄膜的研究进展
11.Study on Utilizing Fluorine in Bastnaesite as Resource and Leaching Technique of R.E;氟碳铈矿中氟的资源化与稀土浸取工艺研究
12.Perfluoro polyethers-base carries the fluid of nanosized fluorocarbon-based magnetic fluid纳米氟碳化合物基磁性液体的基载液——氟醚油
13.Use of tetrafluoro-FEVE finish in the anticorrosion engineering of steel truss of Wuhan Tianxingzhou Bridge四氟型FEVE氟碳面漆在武汉天兴洲大桥钢桁梁防腐工程中的应用
14.Atmospheric-pressure deposition of CF_x films from PTFE evaporated by coplanar dielectric barrier discharge共面介质阻挡放电蒸发聚四氟乙烯沉积碳氟膜的研究
15.Study on Wearing Resistant PTFE Reinforced by Carbon Fiber碳纤维增强聚四氟乙烯耐磨材料的研究
16.Study on Structures and Properties of Air Curing Feve Paints and Preparation of High-Performance Feve Paints常温固化FEVE氟碳涂料结构与性能研究及高性能FEVE氟碳涂料的制备
17.CFC release rate氯氟碳化合物的排放速度
18.hydrochlorofluorocarbons type extinguisher含氯氟碳氢化合物灭火器
相关短句/例句
carbon tetrafluoride四氟化碳 CT
3)Kr and CF4 in He氦中氪、四氟化碳
1.The preparation method of gas reference material for Kr and CF4 in He is discussed.论述了氦中氪、四氟化碳气体标准物质的制备方法、稳定性参考值、不确定度计算,证明达到国家二级气体标准物质要求。
4)electronic grade tetrafluoromethane电子级四氟化碳
5)silicon tetrachloride高纯四氟化碳
6)Freon 14氟利昂14;四氟甲烷;四氟化碳 F1
延伸阅读
四氟化碳 分子式CF4。常温下为无色气体；熔点－184℃，沸点－128℃，密度1.96克／厘米3(-184℃)。四氟化碳只能微溶于水；对热非常稳定，化学性质比四氯化碳更不活泼。分子呈正四面体结构。 在常温下使单质氟与碳直接反应,或在300℃下使四氯化碳与氟化银反应，都能生成四氟化碳。四氟化碳可用于制作低温液体压力计，也可做溶剂、润滑剂和绝缘材料。
