当1991年品那土波火山(Mount Pinatubo)和1815年坦博拉火山(Tambora)爆发的时候该效果是最明显的。
That effect is most noticeable when a volcano erupts explosively, as Mount Pinatubo did in 1991, or Tambora did in 1815.
这个计划受到1991年菲律宾皮那土波(Pinatubo)火山爆发的启发而产生的。
That plan was inspired by watching what happened after the eruption of the Mount Pinatubo volcano in the Philippines in 1991.
研究了将功能梯度材料中应力波传播的计算模型应用到土介质中，提出了梯度土介质的概念。
The model of wave propagation in functionally graded material (FGM) is introduced to soil medium, and the concept of functionally graded soil medium is brought forward.
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