Technique of mutation breeding in gladiola was studied by meansof electron beam.

用电子束辐射菖，研究菖育。

Abstract： Technique of mutation breeding in gladiola was studied by means of electron beam.

摘 要： 用电子束辐射菖，研究菖育。

The characteristics of pulsed electron beam generated by multiplate pseudospark chamber (MPC) on the basis of field escalation effects have been described in this paper.

摘要基于电场递增效应理论，讨论了多极板赝火花脉冲电子束特征。

The process of vacuum electron beam welding for rear-axle housing semiaxle of coach was introduced and the major problems in the process of welding was analysed.

介绍了用真空电子束焊接大型客车后桥壳半轴工艺方法,并就焊接过程中存在主要问题进行了分析。