Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/827b63b75b342fba0c8a5c614c79e5d3.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 proportional band potentiometer是什么意思，proportional band potentiometer的翻译，proportional band potentiometer音标、读音、用法和例句_甲百匯小鸡词典