halogen

英 [ˈhælədʒən]

美 [ˈhælədʒən]

n.  卤素

复数：halogens　

化学

BNC.27425 / COCA.20626

牛津词典

noun

• 卤素
  any of a set of five chemical elements, including fluorine , chlorine and iodine , that react with hydrogen to form acids from which simple salts can be made. Halogens , in the form of gas, are used in lamps and cookers/stoves.

英英释义

noun

• any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions

双语例句

• The low smoke zero halogen flame retardant polyolefin material is composed with inorganic flame fire retardant.
  该低烟无卤阻燃聚烯烃材料由聚烯烃树脂和无机阻燃剂组成。
• It reacts violently with halogen and other oxidants.
  与卤素及其它氧化剂剧烈反应。
• Polyethylene glycols can be used as effective phase transfer catalyst in halogen exchange fluorination.
  聚乙二醇可作为卤素交换氟化反应有效的相转移催化剂。
• The system is equipped with an ultraviolet lamp and a halogen lamp that produces near-infrared light.
  该系统还有一个紫外线台灯和能够产生近红外光的卤素灯。
• The fluorescence quenching of these emissive compounds in solution by halogen anions was studied carefully.
  研究了它们在溶液中的荧光被卤素离子猝灭的问题。
• Low smoke, zero halogen and flame retardant sheath.
  低烟无卤阻燃护套，环保。
• Guang Hui Yuan lighting is an enterprise specialized in studying and manufacturing halogen lamp.
  光辉源照明是一家专业致力研究和制造卤素灯光源产品的企业。
• Halogen atoms contain seven electrons in their valence shell.
  卤原子在它们的介电子层含有七个电子。
• Another important application of sulfonated aluminum phthalocyanines containing halogen substituent is its photo sterilization.
  甲脒亚磺酸（用于丝毛还原染料印花）磺酸基卤素铝酞菁的另一个重要应用为光学杀菌性。
• Cesium and water, and even and low temperature to-116 degrees of ice can occur with violent reaction, also can generate stable halogen halide, this is because it is caused by large radius of ions.
  铯和水，甚至和温度低到-116℃的冰均可发生猛烈反应，与卤素也可生成稳定的卤化物，这是由于它的离子半径大所带来的特点。