国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In order to determine the validity of the test results of aircraft noise and correct the noise test data, a complete set of humidity parameters meteorological testing proposal has been designed. The proposal uses a Cessna aircraft as the weather test aircraft. For specific meteorological test requirements, spiraling weather test track has been designed, and the dewpoint meter has been used as the humidity test equipment. The humidity test proposal has been successfully applied in the noise certification test of the ARJ21-700 aircraft, and it's the first attempt in the domestic flight test weather testing. The actual flight test results show that in the flight test, the proposal can measure the meteorological data like humidity accurately and effectively. The successful application of the proposal has provided an important reference value for the flight test in the future.