在这些化合物里, 环戊二烯环只有4个氢.In there compounds, the cyclopentadiene ring has only four hydrogens.聚二烯基本分子结构是一良好的燃烧剂.The polydiene basic molecular structure is an excellent fuel.所加的反应物可以是二烯烃 、 环二烯烃.The feed reactants can be alkadi...
He orr she almost never responds orr initiates contact with the adult.他几乎从不对大人发出响应或主动发起交互.Responds positively and constructively to changing situations.积极,建设性地对待变化.Each half reaction responds to the interfacial potential...
聚乙烯醇 的耐辐解可通地苄叉化和苯甲酰化提高.Poly ( vinyl alcohol ) has been protected against radiation by benzalation and benzoylation.聚乙烯醇的耐辐解可通过苄叉化和苯甲酰化提高.Poly alcohol has been protected against radiation by benzalation and benzoylation.酰...
I dozed off during the soporific music.我听到这催人入睡的音乐,便不知不觉打起盹儿来了.They certainly had soporific effect upon the Flopsy Bunnies!它们确实对佛洛普西家的小兔们有很强的催眠效果.The warmth of the room and the monotony of the speaker's voice grew s...
abbr.perimeter acquisition radar attack characterization system 环形搜索雷达攻击特性记述系统，Perimeter Acquisition Radar Characterization System 环形搜索雷达攻击特性技术系统，Parking and Revenue Control System 停车与税收控制制度，Philips automatic remote cont...