学生实践操作的方法有：实验箱上搭接电路和在印刷板上焊接电路，并重点介绍了后一种方法。
There are several ways in students operation: link circuit on test box; weld circuit on schematic panel, and this paper emphasizes on the latter one.
对铝合金L F3Y 2搭接板进行了热压条件下激光深熔焊接。
Deep penetration laser welding was performed at aluminum alloy LF3Y2 under hot and press condition.
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