Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/58f148a5226fca97abecdfe192f0a0dc.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 portal jib crane例句_portal jib crane英汉例句_portal jib crane双解例句_欧米惠必应词典
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. 在分析门座起重机用于集装箱装卸作业的局限性的基础上，提出一种新型的起重机变幅系统。