halogen group

相似词语短语

age group───同年龄范围内的人

halogen lamp───卤素灯，碘钨灯

halogenous───adj.含卤的

large group───大群体

target group───目标群体

hallowed ground───圣地

homogeneous group───[计]同类组

action group───n.行动小组

age groups───[林]年龄组

双语使用场景

of a group of substances, most often synthetic organic halogen compounds, that irritate the mucous membranes of the eyes, causing a stinging sensation and tears.───一类物质，大部分是合成的有机卤化物，能刺激眼睛黏膜引起疼痛和流泪。

reaction has signicant advantages, the alkyne proceeds the coupling reaction with the halogen atom as the leaving group.───卤原子作为炔烃三键活化基团和定位基，炔烃三键发生亲电加成反应；

Halogen atom could activate the triple bond and as the directing group, the triple bond occurs the electrophilic addition reaction.───卤原子作为保护基，代替末端炔发生碳-氢官能团化反应。

英语使用场景