The researches of volcanic earthquake activities recorded at Tianchi Volcano Observatory ( TVO) since 1999 showed that the volcanic earthquake activities changed their features before or after the occurrence of the intermediate-deep earthquakes, magnitude 5.0 or larger than that, in the Northwestern Pacific Ocean.
对1999年以来长白山火山观测站记录到的火山地震活动进行了研究,发现在西北太平洋5.0级以上中深源地震发生前后,均有火山地震活动发生变化。
HTB with the largest micropore volume, the widest micropore size distribution, the highest fractal dimension value and the smallest average pore diameter is favorable for doping process, and characterization properties of ATB and TBO in this investigation are just between TVO's and HTB's.
HTB粉末具有最大的微孔体积,最宽的孔径分布,最高的分数维维数和最小的平均孔径,对于掺杂工艺来说是有利的。
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