The marking mechanism is studied, the fluence threshold of marking is acquired in experiment, the conditions of marking is optimized.
分析了该打标过程的作用机理，通过实验得出了对几种不同的卷烟用纸打标的能量密度阈值条件及优化条件。
Between the initial cleaning threshold and complete cleaning threshold, cleaning percentage of the surface increases with the increasing of laser fluence.
在起始清洗阈值和完全清洗阈值之间，清洁率随着激光能量密度的升高而增大。
As the laser fluence exceeds the threshold a mirror surface appears, otherwise, an oxide layer will be formed.
在阈值以上激光作用下不锈钢表面形成镜面，而在阈值以下则出现氧化层。
The referenced expression of damage threshold fluence in laser induced detector damage is given, also the obvious and recessive damage factors and their causes are analyzed.
给出了光电探测器激光能量损伤阈值的参考表达式，并对导致激光损伤的显性和隐性因素及其成因进行了分析。
The numerical results give the critical temperature of the seed region and the thermal stress for crack generation, irradiated with threshold fluence.
在阈值能量的辐照下，数值结果给出了对应的温度和应力。
The damage morphology, and threshold fluence as a function of pulse duration and the dependence of ablation depths on the pulse fluences are measured.
利用原子力显微镜和扫描电镜观察了材料的烧蚀形貌，测量了破坏阈值与脉冲宽度、烧蚀深度与脉冲能量的依赖关系。
The damage morphology, and threshold fluence as a function of pulse duration and the dependence of ablation depths on the pulse fluences are measured.
利用原子力显微镜和扫描电镜观察了材料的烧蚀形貌，测量了破坏阈值与脉冲宽度、烧蚀深度与脉冲能量的依赖关系。
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