Warning: file_put_contents(/home/www/wwwroot/ndsq.cn/cache/5c4dc522206c1fefe811ddf7fb5316a3.txt): failed to open stream: No space left on device in /home/www/wwwroot/ndsq.cn/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_開心英語字典_柠咚词