Warning: file_put_contents(): Only 0 of 6722 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 crank link gear是什么意思，crank link gear的翻译，crank link gear音标、读音、用法和例句_乐豆毛深蓝词典
Application of double crank-link and small tooth number difference planetary gear reducer in cranes and elevators; 對斜磐式錐齒少齒差行星減速器的一些重要傳動元件的制造方案進行了系統研究和論証。