Warning: file_put_contents(): Only 0 of 7269 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 sky wave英英字典_sky wave剑桥英语解释_sky wave柯林斯英文解释_開心英語字典_柠咚词
1. N a radio wave reflected back to the earth by the ionosphere (ionospheric wave), permitting transmission around the curved surface of the earth 天波→compare ground wave