When installed, the high-pole lamp is automatically hung in a hook-shaped trough of the hanging hook after raising to the position of the automatic hanging and unloading gear;
安装灯具时，灯具上升到自动挂钩卸荷装置的位置后自动挂到吊钩的钩形槽里；
The Angle limiting apparatus comprises an arched plate, a trough-shaped plate, an orienting plate, a transverse bolt and a transverse bolt positioning plate.
所述角度限定装置包括起弓形板、槽形板、定向板、横栓和横栓定位板。
The Angle limiting apparatus comprises an arched plate, a trough-shaped plate, an orienting plate, a transverse bolt and a transverse bolt positioning plate.
所述角度限定装置包括起弓形板、槽形板、定向板、横栓和横栓定位板。
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