The blastwind has then effectively ceased and the direct destructive action of the air blast is over.
爆震风已有效地停止了，于是空中爆震波的直接破坏作用就完结了。
2
Since, at the time, there was no wind I could observe very distinctly and actually measure the displacement of the pieces of paper that were in the process of falling while the blast was passing.
因为在爆炸前，我清晰地观察到确实没有风造成飘落的纸片偏移。
3
A nuclear blast produces a blinding flash, burning heat and crushing wind.