Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/071b48aec4c1ae6565f1fda5194ac990.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55 ultrasound transmitting transducer是什么意思，ultrasound transmitting transducer的翻译，ultrasound transmitting transducer音标、读音、用法和例句_淳朴汉英词典