1) precursor electron
先驱电子
2) delayed neutron precursors
缓发中子先驱核
1.
Considering the fuel salt flow effect of the molten salt reactor,the neutron dynamic model was derived based on the particle conservation equations,and the critical problem was calculated by numerical method under three working conditions to study the flow effect to effective multiplication factor,fast neutron,thermal neutron and delayed neutron precursors distribution.
考虑新概念熔盐堆燃料盐的流动特性,从基本的粒子守恒方程出发,推导了熔盐堆的中子动力学模型,并采用数值方法对3种工况下熔盐堆的临界问题进行计算,考察流动对有效增殖系数、快中子分布、热中子分布及缓发中子先驱核分布的影响。
4) electronic-controlled driving
电子驱动
1.
T he miniaturization and the maintenance free of permanent magnetic operating mech anism can be achieved by electronic-controlled driving device.
笔者研制的智能控制与电子驱动装置采用CPLD完成智能控制,并采用由SCR和IGBT组成的电子开关通断合分线圈电流,它不仅能完成断路器的合分闸操作,还具有过流/欠压分闸、合分闸闭锁、以及操作系统的故障监测、诊断与报警等功能。
5) pioneer electric
先锋电子
6) pioneer
[英][,paɪə'nɪə(r)] [美]['paɪə'nɪr]
先驱
1.
Gotthold Ephraim Lessing, the founder of German realism, is one of the pioneers of German Classics.
莱辛是德国现实主义文艺的创始人 ,也是德国古典文学时代的先驱。
2.
AbstractHu Dunfu was one of the pioneers to introduce modern sciences into China.
内容提要胡敦复是最早在我国引进现代科学教育的先驱者之一。
3.
Emily Dickinson,a famous 19th century American poetess,enjoys equal popularity with Whitman and is conferred the pioneer of the 20th century English and American Imagist movement.
狄金森是与惠特曼齐名的19世纪美国著名女诗人,一直被称为20世纪初英美意象派的先驱。
补充资料：缓发中子
分子式：
CAS号：
性质：核裂变碎片中，β衰变链上的核素发射的中子称为缓发中子。
CAS号：
性质：核裂变碎片中，β衰变链上的核素发射的中子称为缓发中子。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条