激光掺杂存在一个阈值能量密度。掺杂浓度和深度的分布与预热温度和杂质镀层厚度有关。
It is found that there is a threshold energy density in laser doping, and distributions of dopant density and depth have relation to preheat temperature and plating layer thickness of the impurities.
结果表明，高浓度EDTA对KDP晶体光散射有明显的影响，但对光学均匀性和光损伤阈值无明显影响。
The result showed that EDTA with high concentration has evident effect on light scatter of KDP crystal but not laser damage threshold and homogeneity.
阈值法的准确与否直接影响煤泥水浓度的计算精度。
The precision of threshold value directly affect the calculate precision of slime water.
根据气泡和水对光的反射特性不同，提出采用阈值法识别图像中的气泡和水，从而为进一步计算掺气浓度打下坚实的基础。
According to different optics-dispersion character, threshold segmentation method is proposed to identify gas from the gas-water flow, which make steadfast base for further calculate void fraction.
含水量的减小有利于固相和液相中4 -CBA浓度的降低，但此含水量存在一个阈值，低于此含水量对杂质的减少速率影响微小。
When water content decreases, the concentration of 4-cba in liquid phase and solid phase tends to reduce, but it has a threshold value under which the influence o...
为了防止系统掉电时数据丢失，采用EEPROM保存报警阈值、最新浓度值等重要数据；
Important data such as warning limit and latest concentrations are saved into EEPROM in case of power break.
为了防止系统掉电时数据丢失，采用EEPROM保存报警阈值、最新浓度值等重要数据；
Important data such as warning limit and latest concentrations are saved into EEPROM in case of power break.
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