Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/47621b828337774bf77904f064ef73f0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 characteristic-impedance termination是什么意思，characteristic-impedance termination的翻译，characteristic-impedance termination音标、读音、用法和例句_沉淀汉英词典