1. Halogen atoms contain seven electrons in their valence shell, and, consequently, are monovalent. 卤原子在它们的价电子层含有七个电子,因此是一价的。
2. Communication cables -- Part 2-26: Common design rules and construction - Halogen free flame retardant insulation compounds. 通信电缆---第2-26部分:一般设计规则和结构---无卤阻燃剂绝缘化合物。
3. The application of microwave technology in halogen-exchange reaction has many merits, such as short reaction time and high yield. 微波加热在卤素交换氟化反应中的应用结果显示其具有反应时间短和产率高的优点。
英英解释
n.
1. any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) tha