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提起气球,人们都很熟悉,在盛大的节日里,五彩缤纷的气球腾空而起,随风飘荡,景观十分壮美,给节日增添了欢快的气氛。十七世纪以来,气球逐渐被有些国家在飞行、气象、军事、科研等方面应用。一九五零年瑞典林业研究所首次用气球进行集材试验,但因控制失灵和气球漏气,试验没有成功。一九五五年他们又一次进行了试验,获得成功,六十年代以来,加拿大、美国等国也分别进行了气球集材试验。我国原计划于一九六六年结合高山集材的问题进行试验
People are very familiar with balloons when they lift their balloons. In the grand festival, colorful balloons float up and the scenery is magnificent, giving the festival a cheerful atmosphere. Since the seventeenth century, balloons have gradually been applied by some countries in flight, meteorology, military affairs and scientific research. For the first time, the Swedish Institute of Forestry carried out the skidding test in 1950, but the test failed because of the control failure and the balloon leak. In 1955, they conducted another experiment and achieved success. Since the 1960s, countries such as Canada and the United States also conducted balloon skidding tests respectively. Our country originally planned to experiment with the problem of mountain skidding in 1966