提高端面抽运功率占有率，可在一定程度上减小热透镜效应对振荡光束尺寸和衍射损耗的影响。
The influences of the thermal lens effect on the oscillation beam radius and diffraction loss can be reduced by increasing the proportion of the end-pumping power.
方法：通过X -射线衍射(XRD)分析比较超声波振荡几种不同季铵盐对蒙脱土进行有机改性的效果。
Methods: Comparing the effect of organization modification by XRD analysis. Results: It showed that interval-distance of CTAB is larger than that of DDTAB.
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