径向温度梯度
Optical pumping of solid-state lasers will induce axial thermal elongation and radial gradient of refractive index in the laser rod, which may be summarized as an effect of thermal thick lens.
光泵固体激光器会在激光棒中引起轴向热伸长和径向折射率梯度。
Thermal conditions forming channel segregation in a steel ingot depend not only on cooling rate but also on the ratio of axial temperature gradient, GA? to radial one, GR.
钢锭中形成沟槽偏析的传热条件不仅与凝固冷却速度有关,而且取决于轴向温度梯度G A与径向温度梯度G R之比。
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