Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/cfc79f277d953429baa8a2d0a77a38d4.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 OOT例句_OOT英汉例句_OOT双解例句_94生活常识网有道词典
In the first part, give the goal of the paper and background knowledge, and talk about the advantages of OOT. 第一部分介紹了研究的目的和背景知識，指出應用麪曏對象技術開發空中交通倣真訓練系統的優越性。