The laser-arc hybrid welding can improve the depth of fusion, welding speed and assembly gap, so it is a new and promising thermal source for welding.
激光-电弧复合热源焊接可以增大焊接熔深，提高焊接速度，增大装配间隙，是一种很有前途的新型焊接热源。
The noise source was firstly introduced into the differential equation of laser thermal conduction and the equation was solved.
首次在激光热传导方程中引入噪声项，推导了噪声影响下该激光热传导方程的解。
We research the issue of heat effect in the laser medium, analysis the work of substances, pump source, the cause of thermal lens which has an important impact on solid-state laser medium heat effect.
分析了对固体激光介质热效应有重要影响的工作物质、泵浦源，研究了热透镜产生的原因。
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