Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/e2331f87b0aa0080ea2611ca67c75a89.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 portal jib crane是什么意思，portal jib crane的翻译，portal jib crane音标、读音、用法和例句_歐米惠必应词典
A brand-new jib-bridge luffing system of crane is brought out based on analysis of the limitation to handle containers of the portal crane. 在分析門座起重機用於集裝箱裝卸作業的侷限性的基礎上，提出一種新型的起重機變幅系統。