该测控系统的高空目标点（子机）由氢气球搭载，根据需要人工放升气球进行高空布点。
This monitoring and controlling system's pick aback planes are carried by hydrogenballoons in order to set up object at high-altitude according to different needs.
气球存在多种隐患，气球爆炸容易给孩子造成伤害，特别是氢气球，如果遇到火焰，还能引起剧烈地燃烧；
There are several hidden balloon, balloon explosions likely to harm children, especially the balloon, if you encounter the flame, can cause severe burns;
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