man-made explosion 人工震源
The explosion made a massive hole in the ground.
爆炸在地面留下了一个巨大的坑。
Additional social stresses may also occur because of the population explosion or problems arising from mass migration movements—themselves made relatively easy nowadays by modern means of transport.
由于人口的猛增或大量人口流动(现代交通工具使这种流动相对容易)造成的种种问题也会对社会造成新的压力。
Only one explosion in recent history has made it to 7 on the Volcanic Explosivity Index – 10 times bigger than Krakatoa.
在近代历史上只有一次火山爆发达到了7级的火山爆发强度指数,它的爆炸力是喀拉喀托火山爆发的10倍。
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