Warning: file_put_contents(): Only 0 of 6260 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 exogenic action是什么意思，exogenic action的翻译，exogenic action音标、读音、用法和例句_沉淀汉英词典
When the gear rack is free from exogenic action, the upper master body and the lower master body are connected together by a spline; 当齿条不受外力作用时，上扳手体与下扳手体通过花键接合在一起； ip.com