Warning: file_put_contents(): Only 0 of 8246 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu.com/index.php on line 58 luffer例句_luffer英汉例句_luffer双解例句_英语字典
Starting with the basic equation of the hydraulic system this paper deals with the mechanism modeling for double triangle boom luffer and its hydraulic system. 从液压系统的基本方程入手，对双三角钻臂变幅机构进行了机理建模。