1·Released as a vapour at high altitude it should produce a screen of properly sized particles, even in a sky that is already hazed.
在高空把硫磺酸蒸发释放，即使是在已经充满云雾的空中，也会形成一层大小合适的微粒屏障。
2·The market for launching small satellites is presently only partly served by the Pegasus rocket, which is launched at high altitude by a commercial jet aircraft.
在小型卫星的发射这一市场，目前只有天马火箭公司提供一些服务。他们用商务喷气式飞机在高空进行发射。
3·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)。
4·The storms' charged particles can be a hazard to the health of astronauts and passengers on high altitude flights.
磁暴的充电粒子对航天员与在高空飞行器上的旅客的健康构成危害。
5·Nuclear explosions are generally classified as air bursts, surface bursts, subsurface bursts, or high altitude bursts.
核爆通常被划分为空中爆炸、地面爆炸、地下爆炸和高空爆炸。