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A luffing extension-jib was installed on top of the carriage with a telescopic nacelle.
在方舱上安装由液压系统控制的可升降伸缩旋转吊臂; 在吊臂顶端安装有可折叠吊篮。
youdao
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A luffing extension-jib was installed on top of the carriage with a telescopic nacelle.
在方舱上安装由液压系统控制的可升降伸缩旋转吊臂; 在吊臂顶端安装有可折叠吊篮。
youdao