您要查找的是不是：
- The plastic nuclear track detector CR-39 is exposed for about 10 hours in balloon observation in 1982.The relative abundance (E>3.6 GeV/n) of the galactic cosmic rays is obtained and compared the result with the satellite data. 在1982年的气球飞行中;球载塑料核径迹探测器CR-39在气球高度飞行了10小时.;测得E>3
- Unlike the earlier aircraft and balloon observations, this energetic radiation seemed to be produced by the lightning itself and not by the large-scale electric fields inside the thundercloud. 与早期飞行器与气球观测结果不同的是，这种高能辐射似乎发自闪电本身，而非雷雨云内部的大范围电场。
- Equilibrium balloon observations 平衡球观测
- A balloon floated across the sky. 有个气球从空中飘过。
- I don't want to be around when the balloon goes up. 要出事了，我趁早离开是非之地。
- He burst the balloon with a prick of the pin. 他用针一戳，气球就爆了。
- A thrust with the pin broke the balloon. 用针一戳，气球就爆了。
- The balloon burst and fell to earth. 气球破裂而落到地上。
- The girl was startled when the balloon exploded. 这女孩在气球爆炸时吃了一惊。
- The cat batted the balloon with its paws. 猫用爪子击打气球。
- The child pricked the balloon and it burst. 那孩子在气球上刺了个洞，气球就爆了。
- He was taken into hospital for observation. 他被送进医院观察。
- Careful observation convinced them that is was so. 仔细的观察使他们相信情况是这样的。
- It's basically wrong to have observation taken off from hearsay. 以道听途说作为意见的根据是根本错误的。
- Humanitarianism is apt to be forgotten when the balloon goes up. 一旦战争爆发，人道主义往往就被抛到脑后了。
- He is a man of little observation. 他是个观察力极差的人。
- The spectators watched the descent of the balloon. 观看的人瞧著气球降落。
- They decided to put him under observation. 他们决定监视他。
- He was under observation by the police. 他受到警方严密监视。
- The ballast may be thrown out to make the balloon go higher. 沙袋可以拋掉以使气球飞得更高。
