The process of vacuum electron beam welding for rear-axle housing semiaxis 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的工艺方法，并就焊接过程中存在的主要问题进行了分析。
The major achievements are as follows: (1) the properties of SP radiation generated by the electron bunches, are analyzed in detail.
其主要工作如下：1 .深入分析了电子束团作用于光栅的辐射特性。
The major achievements are as follows: (1) the properties of SP radiation generated by the electron bunches, are analyzed in detail.
其主要工作如下：1 .深入分析了电子束团作用于光栅的辐射特性。
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