Jib crane: in circles over the operation site and more for open-air handling and installation work.

臂架型起重机：可在圆形场地及其上空作业，多用于露天装卸及安装等工作。

youdao

Jib crane: in circles over the operation site and more for open-air handling and installation work.

臂架型起重机：可在圆形场地及其上空作业，多用于露天装卸及安装等工作。

youdao