栏杆立柱 railing post ; post

立柱栏杆 baluster railing ; [建] post and rail

回旋立柱臂杆起重机 revolving pillar jib crane

立柱倾斜杠杆 column tilt lever

单立柱桅杆起重机 [机] mono-mast crane

栏杆、立柱系统 Balustrade System