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。
In the thermal fatigue test of cylinder head, the shaped laser beam is chosen as the heating source to simulate the real fatigue.
气缸盖激光热负荷试验采用整形激光束作为热源模拟实际工况下气缸盖承受的热负荷。
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