ultrahigh altitude burst 超高空爆炸
high altitude burst 高空核爆
high-altitude nuclear burst 高空核爆炸
burst t altitude 爆发高度
In the 1980s, it burst into flower and died, as it doesevery 30 to 80 years; but human activity had deprived the pandas of access tolower altitude species that would once have served as a back-up.
20世纪80年代，竹子开花并死亡，实际上是每隔30至80年一个周期；但是人类活动阻断了大熊猫到低海拔地区获取其他可能食物的通路。
The ionizing radiation from the high altitude burst can travel for hundreds of miles before being absorbed. Significant ionization of the upper atmosphere (ionosphere) can occur.
由高空爆炸产生的致电离辐射在被吸收之前能够传播几百英里，产生明显的高层大气电离(电离层)。
The altitude of an air burst can be varied to obtain maximum blast effects, maximum thermal effects, desired radiation effects, or a balanced combination of these effects.
爆炸高度可以进行调整，以达到最大的冲击波效果、热辐射效果、放射效果，或实现三者的平衡搭配。
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