Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/d8544bb45ce5d7d1c5aa12a3f7ae1c57.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 absolute ceiling英英字典_absolute ceiling剑桥英语解释_absolute ceiling柯林斯英文解释_欧米惠必应词典
1. N the maximum height above sea level, usually measured in feet or metres, at which an aircraft can maintain horizontal flight 绝对顶点→compareservice ceiling