Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/1bc0fd8947336a33b79f7073b3fd4910.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 ultrasonic level meter例句_ultrasonic level meter英汉例句_ultrasonic level meter双解例句_贰靶汉英词典
In the handheld type oil-level meter, the ultrasonic sensor was used as transducer to detect the oil-level which was achieved by no contact; 手持式油位计以超声波换能器作为传感器件，实现了油位的非接触测量；