Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/6a2a6a4c8aeb22579b30a14e8e483976.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 constant periodic oscillation是什么意思，constant periodic oscillation的翻译，constant periodic oscillation音标、读音、用法和例句_94生活常识网有道词典