Warning: file_put_contents(): Only 0 of 5015 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 青青草色综合久久五月色婷婷
,午夜激情影院日韩,欧美三级午夜理伦三级小说
The effects of near-ground horizontal wind shear on an agricultural airplane are discussed in this paper. 本文以一架農(nóng)業(yè)飛機為算例，系統(tǒng)地研究了縱向近地風(fēng)切變對農(nóng)業(yè)飛機飛行的影響。