Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/99d5f88572ea3e7b5a4cb94bfbe3a853.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 limiting signal velocity是什么意思，limiting signal velocity的翻译，limiting signal velocity音标、读音、用法和例句_歐米惠必应词典