伸臂式起重机 boom hoist ; thrive hoist

伸臂式机具 boom rig

轻便伸缩臂式起重机 portable telescopic crane

伸缩式切削臂 expanding cutting arm

伸缩臂式装载机 telescopic loader

手臂伸展式 Hasta Uttanasana ; The arms stretching

双臂伸缩式隔离开关 pantograph disconnector

伸缩式臂架起重机 telescopic jib crane

可伸缩悬臂门式起重机 [机] gantry crane with retractable boom

单臂伸缩式隔离开关 semi-pantograph disconnector